Đốt cháy hoàn toàn 80 gam pirit sắt trong không khí thu được chất rắn A và khí B. Lượng chất rắn A tác dụng vừa đủ với 200g H2SO4 29,4%. Độ nguyên chất của quặng là:
A. 60%
B. 70%
C. 80%
D. 95%
Môn Hóa nha
Đốt cháy hoàn toàn 80 gam pirit sắt trong không khí, thu được chất rắn A và chất khí B. Lượng chất A phản ứng hoàn toàn với 200 gam dd H2SO4 29,4 %( vừa đủ). Khí B trộn với 20,16 lít O2 ở điều kiện tiêu chuẩn , trong bình kín có chất xúc tác ở 400 oC , ap suất la 1atm. sau đó đưa bình về nhiệt độ ban đầu thì áp suất trong bình là 0,8 atm. Độ nguyên chất của pirit sắt là?
la
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anylglycylaspartylphenylalanylvalylalanylglycyllysylalanylleucyltyrosylvalylglutamylalanylargilanylarginyllysylhistidylisoleucyllysylutamyllysyllysylarginylalanylmethionymylvalylserylglutamylprolylaspartylisophylmethionyllysylaspartylaspartylglutucylthreonylaspartylarginylisoleucyllylysyltyrosylvalylhistidylarginylleucylrginylmethionylserylaspartylalanylglycnylglycylglycylasparaginylvalylserylthvalylglutamylglycylarginylaspartylvalycyllysyllysylglutamylvalylglutaminylvaarginylalanylvalylvalylglutamylphenylaylaspartylaspartylvalylaspartylalanylhylglycylisoleucylglutamylisoleucylaspalutaminylglutamylarginylhistidyllysyltnylisoleucylhistidylarginylmethionylpheonylarginylglutaminylserylaspartylalanylalanylvalylalanylglycylarginylasparlleucyltyrosylvalylasparaginylalanylpralylleucylglutaminylglutamylleucylglutminylserylglycyllysylprolylalanylarginnylisoleucylserylglycylarginylprolylglyptophyltyrosyllysylglutamylglutamylglycylphenylalanyllysylcysteinyllysylpheylglutaminylglutamyltyrosylthreonylleunylphenylalanylprolylglutamylaspartylaeinylglutamylalanyllysylasparaginylaspylthreonylserylalanylserylleucylserylvlvalylserylprolylaspartylglutaminylglulylprolylalanylisoleucylisoleucylthreoreonylvalylthreonylserylglutamylglycylalanylglutaminylcysteinylarginylvalylsylvalylseryltryptophyltyrosylseryllysyolylserylarginylphenylalanylphenylalanlphenylalanylglutamylaspartylthreonyltucylalanylglutamylalanyltyrosylprolylgyltyrosylthreonylphenylalanylvalylalanglycylglutaminylvalylserylserylthreonyglutamylalanylprolylglutamylserylisoleoleucylglutamylglutaminylglutamylisolenyllysylglutamylphenylalanylserylseryllutamylglutamylglutamylglycylleucylhisminylleucylseryllysylisoleucylasparagiucylleucylserylglutamylserylprolylvalyanylaspartylserylglutamyllysylglutamylphenylalanylisoleucyllysylglutamylvalyeucylserylmethionylglycylaspartylvalylnylvalylisoleucylglycylisoleucylprolyltryptophylphenylalanylphenylalanylaspanylprolylserylalanylaspartyltyrosyllysrtylglycylaspartylaspartylhistidylseryylalanylthreonyllysylleucylglutamylasphreonylcysteinylmethionylalanylserylasthreonylisoleucylcysteinylserylalanyltylseryllysylglycylglutamylglycylhistidonylglutamylserylalanylvalylalanyllysyylglycylprolylcysteinylprolylprolylhislleucyllysylprolylisoleucylarginylcystolylalanylisoleucylphenylalanylglutamytamylprolylalanylprolylthreonylvalylthutamylasparaginyllysylglutaminylleucylyrosylthreonylisoleucylisoleucylhistidlserylglycylthreonylphenylalanylisoleuutaminylarginylglutamylaspartylserylgllysylalanylglutamylasparaginylmethionyysteinylalanylalanylglutamylleucylleucthreonylaspartylmethionylthreonylasparyllysylserylthreonylprolylglutamylalanlprolylglutaminylthreonylprolylleucyllalanylleucylaspartylserylglutamylglutalphenylalanylvalyllysylaspartylthreonyucylisoleucylthreonylglutamylglutamylalseryltyrosylglutamylhistidylisoleucyllleucylserylserylglutaminylleucylprolyylleucylglutaminylserylisoleucylleucylylthreonylprolylglutamylserylthreonylateinylisoleucylasparaginylglycylserylinylprolylleucyllysylglutamylprolylseryeucylglutaminylisoleucylvalylglutaminyalanylseryllysylglutamylglycylisoleucymylprolylglutamylthreonylglutaminylalaglutamyllysylisoleucylphenylalanylprollglutamylglutaminylisoleucylasparaginyolylleucyllysylthreonylleucylleucylalaraginyltyrosylprolylglutaminylserylserionylhistidylseryltyrosylleucylthreonylylleucylserylleucyllysylglutamyllysylsparaginylarginylglutamylglutaminylargsylglutaminylglutamylalanylglutaminylslglutaminylserylleucylalanylglutamylgllglutaminylserylprolylaspartylvalylmetasparaginyltyrosylglutamylprolylleucylylcysteinylthreonylglutamylglycylglycymylserylalanylasparaginylprolylleucylgminylaspartylserylalanylvalylarginyliserylleucylarginylphenylalanylprolylleulglutaminylvalylleucylleucyllysylglutaaraginylvalylvalylmethionylprolylprolyylglutamylseryllysylarginylglutamylprolylglutaminylglutamylvalylglutaminylglllysylglutamylserylleucylleucylserylglglutaminylarginylleucylasparaginylleuccysteinylarginylalanylleucylglutaminyllglutaminylprolylglycylleucylphenylalainylasparaginylisoleucylglutamyllysylvlasparaginylisoleucylthreonylglutaminyucylmethionylcysteinylmethionyltyrosylserylvalylthreonylglutamylglutamylvalylglutamylaspartylvalylaspartylprolylgleucyllysylmethionylglutamylleucylarginylisoleucylisoleucyltyrosylglutamylgluylthreonylalanylglutamylglycylprolylarlycylalanyllysylthreonylserylleucylgluartylserylphenylalanylserylglycylserylsoleucylthreonylglutamylprolylglutamyllisoleucylserylthreonylglutamylglutamyaginylvalylglutaminylserylarginylvalyleonylprolylvalylthreonyllysylglycylvalspartylglutamyllysylglutaminylaspartylglutamylglutamyllysylglutamylglutamylsreonylglutamylglutamylvalylalanylthreotamylalanylglutamylglycylglycylleucyliprolylmethionylisoleucylhistidylthreonvalylserylglutamylglutamylglycylaspartnylthreonylserylisoleucylthreonylasparaginyltryptophyltyrosylphenylalanylglulylserylaspartylglutamyllysylphenylalapartylglutaminylasparaginylthreonyltyrartyllysylvalylasparaginylthreonylglutlglutamyltyrosylvalylcysteinylglutamyllglycyllysylthreonylalanylthreonylseryllysylarginylalanylalanylprolylvalylisutamylprolylleucylglutamylvalylalanylllphenylalanylthreonylcysteinylglutamyllasparaginylvalylarginylphenylalanylglalanylglycylarginylglutamylisoleucyltyeinylserylisoleucylarginylserylseryllyglutamylisoleucylleucylarginylthreonylylglycylglutamyltyrosylthreonylcysteinyltyrosylglycylserylvalylserylcysteinyylvalylthreonylvalylprolylglycylglycylleucylleucylprolylglutamylarginyllysylutamylvalylvalylleucyllysylserylvalyllmylglutamylglutamylglutamylprolyllysylglutamyllysylvalyllysyllysylprolylalanolylprolyllysylprolylvalylglutamylglutlvalylthreonyllysylarginylglutamylargiylthreonyllysylvalylprolylglutamylisolylleucylprolylalanylprolylglutamylprolnylglutamylvalyllysylthreonylisoleucyllprolylglutamylprolylthreonylprolylisoylvalylprolylvalylvalylglycyllysyllysylyllysylglutamylglutamylalanylalanyllylysylglycylvalylprolyllysyllysylthreonlalanylglutamylarginylarginyllysylleuccylglutamyllysylprolylprolylaspartylglnyltyrosylglutaminylleucyllysylalanylvlyllysylglutamylisoleucyllysylaspartyltamylserylglutamylphenylalanylvalylglylanylglutamylcysteinylleucylvalylserylhreonylthreonyltryptophylmethionyllysyeucylarginylglutamylserylprolyllysylhilanylaspartylglycyllysylaspartylarginycylaspartylvalylglutaminylleucylserylahreonylcysteinylvalylleucylarginylleucylthreonylserylthreonylalanyllysylleucrolylvalylarginylphenylalanylvalyllysyamylvalylthreonylvalylvalyllysylglycylserylcysteinylglutamylleucylasparaginyalyltryptophylarginyllysylaspartylglycysylprolylglycylarginylisoleucylvalylpylmethionylarginylalanylleucylthreonylspartylaspartylthreonylaspartylalanylgreonylvalylglutamylasparaginylalanylasysteinylserylserylcysteinylvalyllysylvnylaspartyltryptophylleucylvalyllysylpinylhistidylvalyllysylprolyllysylglycylalanylcysteinylaspartylisoleucylalanyinylisoleucyllysyltryptophylphenylalanlisoleucylprolylalanylglutamylprolylasmylisoleucylleucylarginylaspartylglycyucyllysylisoleucyllysylasparaginylalanoleucylalanylglutamyltyrosylalanylvalyylarginyltyrosylprolylalanyllysylleucylglutamylvalylglutamylleucylleucyllysyylthreonylisoleucyltyrosylglutamyllysyylaspartylalanylglutamylisoleucylserylylglycylglutaminyltryptophyllysylleucyinylprolylserylprolylthreonylcysteinyllglycylglycyllysylarginylphenylalanyllyllysylleucylaspartylglutaminylalanylgaminylalanylleucylasparaginylalanylisoylleucylthreonylvalyllysylglutamylisolanylalanylvalylprolylleucyllysylaspartrginylarginylglutaminylalanylarginylphcylthreonylarginylglutamylalanylasparaysylglycylprolylaspartylisoleucylisolenylalanylaspartylisoleucylisoleucylalaisoleucylleucylvalylisoleucylasparaginylaspartylaspartylglutamylglycylvalyltutamylglycyllysyllysylthreonylserylalareonylglycylisoleucylarginylleucyllysyucylglutamylaspartylglutaminylthreonyleonylalanylthreonylphenylalanylvalylcylutamyllysylmethionylhistidylvalylvalyinylaspartylalanyllysylleucylhistidyltcylisoleucylserylserylglutamylglycyllymylmethionyllysylglutamylvalylthreonyllglutaminylisoleucyllysylalanylglutamiylthreonylalanylglutaminylleucyllysylvlyltyrosylphenylalanylthreonylvalyllysylalanylvalylglutamyllysylaspartylglutteinylglutamylvalylseryllysylaspartylvlalanyllysylaspartylglycylglutamylglutlysyltyrosylserylisoleucyllysylalanylaoleucylleucyllysylisoleucyllysyllysylaylglycylglutamyltyrosylvalylcysteinylatyllysylthreonyllysylalanylasparaginylinylleucylisoleucylglutamylvalylglutamylglutamylvalylphenylalanylvalylglycyllalanylglutamylisoleucylglutamylleucyltidylglycylglutaminyltryptophyllysylleylthreonylalanylserylprolylaspartylcystamylaspartylglycyllysyllysylhistidyliylasparaginylcysteinylglutaminylleucylylvalylserylphenylalanylglutaminylalanalanylalanylasparaginylleucyllysylvalyleucylphenylalanylisoleucylthreonylproylphenylalanylglutamyllysylaspartylglulcysteinylglutamylvalylserylarginylglularginyltryptophylleucyllysylglycylthreonylglycylaspartylaspartylarginylphenlaspartylglycylthreonyllysylhistidylselalanylalanylphenylalanylglutamylasparnylphenylalanylglutamylalanylglutamylaycyllysylleucylisoleucylisoleucylglutalphenylalanylleucylthreonylprolylleucysylglutamyllysylglutamylserylalanylvalleucylserylhistidylaspartylasparaginyllphenylalanyllysylasparaginylaspartylgnylthreonylarginylserylvalylserylmethillysylthreonylhistidylserylisoleucylthylserylisoleucylaspartylaspartylthreonlylglutamylalanylmethionylglycylmethiocylthreonylvalylleucylglutamylglycylasonylglycyllysylleucylglutaminylaspartylysylaspartylglutamylvalylisoleucylleuucylseryllysylalanylaspartylalanylprolysylaspartylglycyllysylglutamylisoleuclanylvalylisoleucyllysylthreonylasparteucylisoleucylleucyllysyllysylalanylleylglutaminyltyrosylthreonylcysteinylasyllysylthreonylserylglycyllysylleucylainylglutamylisoleucyllysylleucylvalylalglutamylvalylmethionylglutamylthreonylalanylglutamylthreonylglutamylisoleuceucylhistidylalanylasparaginyltryptophnylleucylleucylglutaminylthreonylprolylysylglutamylglutamylglycyllysylisoleustidylasparaginylcysteinylarginylleucyycylvalylaspartylphenylalanylglutaminyerylserylalanylhistidylleucylarginylvaglycylleucylleucylarginylprolylleucyllnylalanylglycylglutamylthreonylalanyltlglutamylleucylseryltyrosylglutamylaspyptophyltyrosylleucyllysylglycyllysyllyllysylvalylvalylprolylarginylserylgluylleucylthreonylleucylarginylaspartylvylglycylglutamylvalylglutaminylleucyltnyllysylthreonylhistidylalanylasparagiamylprolylprolylvalylglutamylphenylalalaspartylglutaminylthreonylvalylglutamlvalylleucylglutamylcysteinylglutamylvalanyllysylvalyllysyltryptophylphenylaglutamylisoleucylleucyllysylseryllysyllanylaspartylglycylarginylvalylarginylpartylcysteinylthreonylprolylglutamylalthreonylcysteinylaspartylalanyllysylaylcysteinylasparaginylleucylasparaginylglutamylphenylalanylleucylarginylprolminylvalylarginylglutamyllysylglutamyllutamylcysteinylglutamylleucylserylargalyllysyltryptophylphenylalanyllysylaslysyllysylglycyllysyllysyltyrosylasparylalanylvalylarginylisoleucylleucylvallleucylleucylaspartylaspartylglutamylalutamylvalylarginylthreonylalanylarginlthreonylvalylleucylglutamylglutamylglyllysylasparaginylleucylalanylasparagimylthreonylaspartylthreonylisoleucyllylseryllysylprolylglycylalanylglutamylvglycylaspartylglutamylglutamylisoleucyinyltyrosylglutamylisoleucylleucylthreylisoleucylleucylvalylisoleucylglutamilutamylaspartylalanylglycylasparaginyleucylprolylserylserylarginylthreonylastidylglutamylleucylalanylalanylglutamylylglutaminylasparaginylleucylglutamylyllysylalanylglutamylphenylalanylvalylutamylserylphenylalanylprolylvalylglutlaspartyllysylthreonylleucylglutamylseylvalylisoleucylalanylaspartylglycyllyllysylaspartylalanylthreonylleucylglutyltyrosylvalylvalylmethionylvalylglycynylhistidylleucylthreonylvalylisoleucylvalylvalylprolylleucyllysylaspartylthaminylglutaminylglutamylvalylvalylphenlvalylasparaginylthreonylglutamylglycyenylalanylarginylasparaginylglutamylglpartylserylseryllysyltyrosylisoleucyliylleucylvalyltyrosylthreonylleucylargistidylleucylaspartylaspartylglutaminylvalylserylleucylthreonylasparaginylhisylvalyllysylserylalanylalanylasparaginmylglutamylaspartylleucylarginylisoleupartylisoleucylglutamylthreonylmethionnylphenylalanyltryptophylcysteinyllysyaginylvalylthreonylleucyllysyltryptophtamylglutamylvalylprolylphenylalanylasyrosylarginylvalylaspartyllysyltyrosyllisoleucyllysylaspartylcysteinylglycyllycylglutamyltyrosylisoleucylvalylthreysylserylvalylalanylglutamylleucylleucrolylthreonylglutamylphenylalanylvalyltylglutaminylthreonylvalylthreonylglutnylvalylphenylalanylserylcysteinylglutylalanylasparaginylvalyllysyltryptophyinylglutamylisoleucyllysylglutamylglyclglutamyllysylaspartylglycylserylisolesoleucyllysylaspartylcysteinylarginyllnylglutamyltyrosylalanylcysteinylglycyerylarginylalanylarginylleucylphenylalrolylvalylglutamylisoleucylisoleucylarisoleucylleucylglutamylalanylprolylglyanylleucylalanylglutamylleucylasparagialylglutaminyltryptophylleucylarginylavalylvalylglutaminylglycylaspartyllysyylserylglutamylglycyllysylisoleucylhisylcysteinylaspartylisoleucyllysylprolytamyltyrosylarginylphenylalanylisoleuclanylarginylalanyllysylleucylglutamyllsoleucyllysylthreonylalanylaspartylglurtylvalylglycyllysylprolylleucylthreonspartylalanyltyrosylprolyllysylalanylgylalanyllysylglutamylasparaginylglutameonylisoleucylaspartylthreonylthreonylylphenylalanylarginylisoleucylleucylglllysylglycylarginyltyrosyllysylisoleucysylhistidylglycyllysylalanylglutamylgylleucyllysylvalylisoleucylaspartylvalaraginylleucylglutamylvalylthreonylgluycylglutamylvalylserylleucylalanyltryphreonylaspartylglycylglycylseryllysylivalylglutamylarginylarginylaspartylisotophylvalylleucylalanylthreonylaspartylglutamylphenylalanylthreonylvalylthreylglycylvalylglutamyltyrosylleucylphennylasparaginylarginylvalylglycylthreonthreonylaspartylasparaginylprolylvalylsylaspartylvalylprolylglycylprolylprolleucylthreonylaspartylvalylasparaginylleucylthreonyltryptophylglutamylprolylglycylalanylglutamylisoleucylthreonylaamylleucylarginylaspartyllysylthreonylrtylthreonylalanylmethionylthreonylvalylserylalanylthreonylvalylthreonylaspanylglutamyltyrosylserylphenylalanylargaraginylarginylisoleucylglycylvalylglyonylprolylphenylalanylvalyllysylvalylalarginylprolylserylprolylprolylvalylaspartylglutaminylthreonylglutaminylseryptophylglutamylprolylprolylleucyllysyleucylleucylglycyltyrosylisoleucylisolelglutamylglycyllysylaspartylasparaginylasparaginylmethionyllysylleucylvalylpysylvalylthreonylglycylleucylglutamyllucyltyrosylarginylvalylserylalanylglutylserylaspartylprolylserylglutamylisolylalanylaspartylaspartylalanylphenylalionylaspartylleucylserylalanylphenylalylvalylisoleucylvalylprolylasparaginylcylvalylprolylserylthreonylglycyltyrosthreonyltryptophylcysteinylphenylalanyamylthreonylglycylaspartylarginylvalylrylalanyltyrosylalanylglutamylleucylvalarginylserylaspartyllysylglycylisoleuglutamylasparaginylarginylvalyllysylthsoleucylaspartylvalylasparaginylvalylinylprolyllysylglutamylleucyllysylphenynyllysylaspartylserylvalylhistidylleucrolylaspartylaspartylaspartylglycylglyyrosylvalylvalylglutamyllysylarginylglltryptophylthreonyllysylvalylmethionylpartylleucylglutamylphenylalanylthreontaminylglycyllysylglutamyltyrosylleucynylarginylasparaginyllysylcysteinylglytyrosylvalylaspartylglutamylprolylvalyrolylalanylthreonylvalylprolylaspartylllysyltryptophylarginylaspartylarginylucylphenylalanylleucylthreonyltryptophnylaspartylglycylglycylserylarginylisolylglutamylarginylcysteinylprolylarginlvalylalanylcysteinylglycylglutamylpromethionylglutamylvalylthreonylglycylletophyltyrosylalanyltyrosylarginylvalylylglutaminylglycylalanylseryllysylprollglutamylisoleucylglutaminylalanylvalyalanylprolylglutamylisoleucylphenylalaucylalanylglycylleucylthreonylvalyllyslglutamylleucylprolylalanylthreonylvalprolyllysylisoleucylthreonyltryptophyllisoleucylleucyllysylglutaminylaspartyucylglutamylasparaginylvalylprolyllysyleucylvalylaspartylseryllysylarginylserosylisoleucylisoleucylglutamylalanylvarginylalanylthreonylalanylvalylvalylgspartyllysylprolylglycylprolylprolylalucylthreonylaspartylvalylthreonylaspareucylthreonyltryptophylasparaginylprolylglycylseryllysylisoleucylthreonylaspginylarginylalanylthreonylaspartylseryylleucylserylserylthreonylvalyllysylasyllysylalanylthreonyllysylleucylisoleurosylisoleucylphenylalanylarginylvalylionyltyrosylglycylalanylglycylglutamyllylisoleucylthreonylalanyllysyltyrosyllprolylglycylprolylprolylthreonylarginisoleucylthreonyllysylaspartylalanylvacysteinylglutamylprolylaspartylaspartyleucylthreonylglycyltyrosyltryptophylvolylaspartylthreonylaspartyllysyltryptyllysylmethionylprolylvalyllysylaspartyllysylglycylleucylthreonylasparaginylalanylarginylvalylleucylalanylglutamylglycyllysylprolylseryllysylserylthreoneucyllysylaspartylprolylisoleucylasparylglycyllysylprolylthreonylvalyllysylalvalylarginylleucylasparaginyltryptophylaspartylglycylglycylalanyllysylisolecylglutamylmethionylleucyllysylthreonytophylvalylarginylvalylalanylglutamylgtaminylhistidylleucylleucylprolylglycyminylglutamyltyrosylserylphenylalanylaginyllysylalanylglycylglutamylserylgluaspartylprolylvalylleucylcysteinylargiprolylserylprolylprolylarginyltryptophaginylisoleucylthreonyllysylasparaginyryptophylthreonylvalylprolylglutamyllysoleucylthreonylasparaginyltyrosylisoltylvalylarginylarginyllysylglycyltryptlthreonylthreonylvalyllysylaspartylthreonylprolylleucylthreonylglutamylglycylarginylvalylalanylalanylglutamylasparylserylaspartyltyrosylthreonylglutamylleucylalanyllysylaspartylthreonylphenyprolylprolyltyrosylalanylleucylalanylvarginylhistidylvalylaspartylleucyllysylasparaginylaspartylglycylglycylarginyrosylvalylisoleucylglutamyllysyllysylgrginyltryptophylvalyllysylalanylglycylrtylcysteinylasparaginylphenylalanylareucylglutamylglycylthreonylglutamylvalalylarginylalanylglutamylasparaginylglylprolylserylglutamylprolylthreonylglulutamylaspartylprolylthreonylserylprolrtylleucylhistidylvalylthreonylaspartyoleucylalanylisoleucylalanyltryptophylaginylglycylglycylserylprolylisoleucylglutamylmethionylcysteinylprolylvalylglmethionylarginylvalylasparaginylserylleucyllysylphenylalanyllysylvalylglutapartyllysylglutamyltyrosylvalylleucylaginylalanylisoleucylglycylvalylserylglerylglutamylasparaginylvalylvalylalanyyllysylprolylthreonylisoleucylaspartyltylisoleucylisoleucylvalylisoleucylgluisoleucylprolylvalylprolylphenylalanylthreonylvalylseryltryptophylhistidyllylysylalanylserylaspartylarginylleucyltartylhistidylisoleucylserylalanylhistirylvalylarginylalanylaspartylalanylglylthreonylleucylglutamylasparaginyllysynylserylisoleucylasparaginylvalyllysylcylprolylcysteinyllysylaspartylisoleucthreonyllysylserylserylcysteinyllysyllylprolylglutamylphenylalanylaspartylglucylhistidyltyrosylvalylleucylglutamylrginylarginylthreonyltyrosylisoleucylpmylasparaginyllysylleucylseryltryptophsoleucylprolylasparaginylglycylglutamyinylvalyllysylalanylvalylasparaginyllyyrosylisoleucylglutamylleucyllysylaspautaminylaspartylprolyllysylglutaminylplaspartylvalylglutamylvalylhistidylasplalanylmethionylthreonylisoleucylthreoltyrosylaspartylglycylglycylseryllysyleucylisoleucylglutamyllysylisoleucylalnyltryptophyllysylarginylcysteinylasparolylisoleucylleucylthreonyltyrosylthrlglutamylglycyllysylglutamyltyrosylglunylalanylglutamylasparaginylalanylalanlserylarginylalanylthreonylprolylprolyolylisoleucylaspartylalanylprolyllysylserylleucylglutamylvalyllysylarginylglleucylaspartylalanylserylisoleucylseryonylisoleucylthreonyltryptophylisoleucalylisoleucylvalylprolylglutamylglutamlanylprolylleucylvalylarginylarginylarinylglutamylglutamylglutamylprolylphenonylglutaminylarginylleucylserylisoleuylglycylglutamylserylglutaminylleucylaylarginylprolylaspartylhistidylglycyllvalylglutamylasparaginylaspartylhistidrolylcysteinylthreonylvalylserylvalyllolylprolylisoleucylasparaginylphenylalylisoleucylarginyllysylthreonylserylvautamylprolylprolylleucylaspartylaspartlisoleucylasparaginyltyrosylthreonyllethreonyllysylprolylaspartylserylglutamonylserylthreonylleucylarginylhistidylonyllysylleucylisoleucylglutamylglycylnylarginylvalylarginylalanylglutamylasrolylglycylprolylprolylcysteinylvalylsylaspartylprolylphenylalanylglycylprolllysylprolylisoleucylvalylglutamylasparylmethionylleucylvalyllysyltryptophyltylasparaginylglycylserylprolylisoleucylglutamyllysylarginylglutamylvalylaspphylserylarginylvalylasparaginyllysylsucyllysylalanylasparaginylvalylaspartyucylthreonyltyrosylvalylphenylalanylarparaginylalanylalanylglycylprolylglycyserylaspartylprolyllysylthreonylalanyllprolylprolylglycylprolylprolylisoleuclthreonylserylserylthreonylthreonylisohylglutamylprolylprolylalanylphenylalatamylisoleucylvalylglycyltyrosylphenyleucylvalylglycylthreonylasparaginyllysreonylglutamyllysylmethionylisoleucyllreonylvalyllysylglutamylisoleucylarginyllysylleucylarginylvalylserylalanylvatamylglycylprolylprolylglycylglutamyltlvalylalanylglutamylprolylglutaminylglylleucylaspartylvalylserylvalyllysylglcylmethionylalanylglycyllysylthreonylllylvalylthreonylglycylarginylprolylvallthreonyllysylglutamylglutamylglycylglginylvalylvalylisoleucylaspartylasparalutamylleucylisoleucylisoleucyllysylastylhistidylglycylarginyltyrosylvalylisginylserylcysteinylglycylseryllysylphealylglutamylvalylphenylalanylaspartylvpartylleucyllysylprolylvalylvalylthreocysteinylleucylleucylasparaginyltryptortylaspartylglycylglycylserylglutamylisoleucylisoleucylglutamylarginyllysylathreonyltryptophylarginylglutaminylprolarginylseryllysylcysteinylaspartylisotamylglycylglutaminylglutamyltyrosyllylalanyllysylasparaginyllysylphenylalanvalylglutamylisoleucylglycylprolylisollleucylglycylprolylprolylthreonylseryltyrosylthreonylglutamylarginylglutaminonylleucylaspartyltryptophyllysylglutacylglycylserylprolylisoleucylglutaminytamyllysylarginylarginylhistidylaspartutamylarginylvalylasparaginyllysylargieonylserylphenylalanylleucylvalylglutalhistidylglutaminylmethionyltyrosylglulanylvalylasparaginylglutamylisoleucylrylleucylprolylleucylasparaginylvalylvrtylglutamylvalylprolylprolylthreonyliylvalylarginylglycylaspartylthreonylislutamylprolylvalylhistidylisoleucylprolleucylprolylmethionylprolyllysylisolearaginylglutamylthreonylvalylisoleucylalanylleucylglutaminylisoleucylthreonyinylserylglutamylalanyllysylthreonylglylalanylvalylarginylglutamylaspartyllyylthreonylalanylserylasparaginylarginyarginylasparaginylvalylhistidylvalylglolylserylprolylprolylarginylasparaginysoleucyllysylalanylglutamylserylcysteispartylalanylprolylleucylaspartylaspareucylthreonylhistidyltyrosylvalylisolenylserylarginyllysyllysylalanylglutamyeonylasparaginylthreonylalanylvalylgluucyltryptophyllysylleucylisoleucylprollglutamylphenylalanylarginylvalylarginlglycylisoleucylserylaspartylglutamylclvalylisoleucylglutaminylaspartylprolyolylprolylglycyllysylprolyllysylvalyllylserylmethionylleucylvalylseryltryptotylasparaginylglycylglycylserylprolyliphylleucylglutamyllysylarginylglutamylptophylserylarginylvalylserylarginylalylglycylleucyllysylglycylvalylglutamylrginylleucylleucylglutamylglycylvalyllginylalanylmethionylalanylisoleucylaspglycylprolylprolylserylglutamylprolylsylglycylaspartylprolylisoleucylphenylaserylcysteinylprolylglutamylvalyllysyllisoleucylserylleucylglycyltryptophyllglycylglycylserylprolylisoleucyllysylgethionylglutaminylglutamylglutamylglycllysylarginylvalylasparaginylglutamylpreonylthreonylcysteinylglutamylcysteinlysylglutamylleucylarginyllysyltyrosyllalanylvalylasparaginylglutamylalanylgylaspartylthreonylthreonylglycylglutamrtylisoleucylglutaminylglutamylglutamyleucylaspartylisoleucylglycylalanylglucysteinyllysylalanylglycylserylglutamilanylvalylisoleucyllysylglycylarginylpryptophylglutamylphenylalanylaspartylghionyllysylaspartylglycylvalylhistidylrtylalanylglutaminylleucylglutamylthreerylvalylisoleucylisoleucylisoleucylprrylhistidylthreonylglycyllysyltyrosylsaraginyllysylalanylglycylglutaminyllyslarginylvalyllysylvalylmethionylaspartlaspartylleucyllysylvalylserylaspartylcysteinylarginylleucylseryltryptophyllaspartylglycylglycylaspartylarginylisocylglutamyllysylarginylthreonylisoleucylthreonyllysylvalylasparaginylprolylathreonylphenylalanylvalylvalylprolylasaminylglutaminyltyrosylphenylalanylphelutamylasparaginylarginylphenylalanylgylglutamylthreonylisoleucylglutaminylaaspartylprolylisoleucyltyrosylprolylprsylleucyllysylisoleucylglycylleucylisonylvalylhistidylleucylseryltryptophyllartylglycylglycylserylprolylvalylthreotamylcysteinylleucylalanyltryptophylasysyllysylglutamylalanyltryptophylarginylarginylaspartylvalylglutamylglutamyllvalylglutamylaspartylleucylvalylglutamylphenylalanylarginylvalyllysylalanylalylseryllysylprolylserylalanylthreonycysteinylglutaminylarginylprolylaspartylaspartylleucyllysylglutamylphenylalautamylglycylthreonylasparaginylvalylassoleucyllysylglycylvalylprolylphenylalptophylphenylalanyllysylalanylprolylprinyllysylglutamylprolylvalylleucyltyroaraginyllysylleucylvalylvalylaspartylacylvalylisoleucylprolylglutaminylserylglycylleucyltyrosylthreonylisoleucylthinylleucylglycylthreonylalanylseryllysaraginylvalylleucylglycylarginylprolylisoleucyllysylphenylalanylglutamylserymethionylthreonylleucylseryltryptophylylaspartylglycylglycylseryllysylisoleusoleucylglutamyllysylarginylglutamylaltryptophylvalylhistidylvalylserylseryllthreonyltyrosylthreonylisoleucylprolytidylglutamyltyrosylvalylphenylalanylaminylasparaginyllysyltyrosylglycylisolrtylserylglutamylprolylglutamylthreonyylalanylserylvalylprolylglycylalanylprlserylserylvalylthreonylarginylasparagraginyltryptophylglutamylglutamylprolylserylprolylvalylthreonylglycyltyrosylsylaspartylthreonylthreonylseryllysylaparaginylarginylaspartylprolylisoleucyglycylvalylseryltyrosyllysylvalylthreocylserylaspartyltyrosylglutaminylphenyleucylasparaginylalanylalanylglycylvalylserylaspartylprolylalanylthreonylalaanylprolylprolylglycylprolylprolylphenartyltryptophylthreonyllysylserylserylhylserylprolylprolylleucyllysylaspartylglycyltyrosylisoleucylvalylglutamyltyylglutamylglutamyltryptophylglutamyllyvalylarginylglycylthreonyllysylleucylvlutamylglycylalanylphenylalanyltyrosyllanylvalylasparaginylisoleucylalanylglycylglutamylvalylthreonylaspartylvalylrtylarginylleucylvalylserylprolylasparanylserylvalylarginylaspartylarginylisylglycylvalylisoleucylarginylisoleucylcyllysylprolylprolylprolylthreonylvalyonylasparaginylglutamylarginylthreonyllthreonylisoleucylglutamylthreonylthreethionylvalylisoleucyllysylasparaginylidylglutaminylglycylvalyltyrosylseryllutamylalanylglycylglutamylarginyllysyllaspartylvalylleucylaspartylvalylprolylylphenylalanylleucylalanylhistidylasputamylserylcysteinyllysylleucylthreonylutamylaspartylaspartylglycylglycylserltyrosylvalylisoleucylglutamyllysylarginylalanyltryptophylthreonylprolylvalyylarginylglutaminylasparaginylalanyltholeucylglutaminylglycyllysylalanyltyrosoleucylalanylalanylglutamylasparaginylprolylphenylalanylvalylglutamylthreonleucylarginylglutamylprolylisoleucylthlylglutamylaspartylleucylglutamylvalylraginylthreonylvalylthreonylleucylthreyllysyltyrosylaspartylglycylglycylserynyltyrosylvalylleucylglutamylserylargitamyllysylphenylalanylhistidyllysylvalginylleucylleucylserylarginyllysyltyrosylglutamylglycylaspartylthreonyltyroslanylvalylasparaginylisoleucylvalylglyphenylalanylcysteinylthreonyllysylprolpartylglutamylleucylalanylprolylprolyllphenylalanylarginylaspartyllysylleucylglutamylalanylphenylalanylalanylleucylycyllysylprolyllysylprolyllysylvalylsrtylglutamylalanylaspartylvalylleucylgnylhistidylisoleucyllysylthreonylthreoleucylglutamyllysylisoleucyllysylalanyyllysyltyrosylcysteinylvalylvalylvalylcylserylarginyllysylglycylphenylalanylvalylvalylaspartylhistidylprolylglycylerylphenylalanylaspartylglutamylvalyltlvalylisoleucylseryltryptophyllysylproylglycylseryllysylisoleucylthreonylasputamyllysyllysylglutamylvalylglycyllysrolylvalylthreonylserylalanylserylalanylvalylseryllysylleucylleucylglutamylghenylalanylarginylisoleucylhistidylalaglycylisoleucylserylaspartylprolylleucysylalanyllysylaspartylarginylphenylallprolylaspartylglutaminylprolylisoleucllysylaspartylserylalanylleucylvalylthlylhistidylaspartylglycylglycyllysylprosylisoleucylleucylglutamyllysylarginylarginyltryptophylalanylarginylvalylthistidylprolyltyrosylthreonyllysylphenyucylleucylglutamylglycylcysteinylglutainylvalylserylalanylglutamylasparaginyycylaspartylprolylserylprolylprolylserllysylaspartylprolylisoleucylalanyllysaginylprolylglutamylalanylisoleucylaspaginylserylvalylaspartylleucylthreonylinylhistidylaspartylglycylglycylseryllleucylvalylglutamyltyrosylglutaminyllymyltryptophylarginylarginylalanylasparlserylcysteinylprolylglutamylthreonyllleucylarginylaspartylglycylglutaminyltnylvalylleucylalanylvalylasparaginylalylprolylalanylhistidylvalylprolylglutatylarginylleucylglutamylprolylprolylglalanylasparaginylmethionylalanylarginyllysylvalylglycylaspartylthreonylleucysoleucyllysylglycylvalylprolylphenylalhyllysyllysylglutamylaspartylarginylasylarginylisoleucylaspartylvalylthreonylutamylisoleucylarginylasparaginylalancylglycylisoleucyltyrosylserylleucylthlalanylglycylseryllysylthreonylvalylseaspartyllysylprolylglycylprolylprolylarylglutamylisoleucylarginyllysylaspartyltryptophyllysylglutamylprolylleucylaylisoleucylthreonylasparaginyltyrosylvrtylvalylalanylserylalanylglutaminyltrlthreonylseryllysyllysyllysylserylhistleucylasparaginylglutamylglycylasparaganylarginylvalylalanylalanylglutamylasinylglycylprolylphenylalanylvalylglutayllysylalanylleucylaspartylprolylleucyolyllysylaspartylleucylhistidylhistidyeonylglutamylvalylserylleucylvalyltryplarginylaspartylglycylglycylserylprolyylvalylglutamyltyrosylglutaminylglutamspartyltryptophylisoleucyllysylphenylaraginylleucylglutamylcysteinylvalylvaltaminylglycyllysylthreonyltyrosylarginylglutamylasparaginylisoleucylvalylglythreonylthreonylisoleucylprolylisoleucyllysylleucylvalylprolylprolylserylvaleucylisoleucylglutamylglycylleucylvalyonylvalylarginylphenylalanylprolylalanlylprolylvalylprolylthreonylalanyllysyglycylserylglutamylisoleucyllysylthreohreonylvalylglutamylthreonylaspartylaslleucylthreonylisoleucyllysylasparaginrtylthreonylglycylglutamyltyrosylglutaaraginylalanylalanylglycylseryllysylthlthreonylvalylleucylaspartylvalylprolyolylisoleucylasparaginylisoleucylleucylhistidylmethionylthreonylisoleucylserysylaspartylaspartylglycylglycylserylpylisoleucylvalylglutamyllysylglutaminy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Nung 22,4 gam kim loại M (hoá trị 2) với lưu huỳnh dư thu được chất rắn X. Cho chất rắn X tác dụng hoàn toàn với lượng dư dung dịch HCl thu được khí A và 6,4 gam bã rắn không tan. Làm khô chất bã rắn rồi đốt cháy hoàn toàn thu được khí B. Khí B phản ứng vừa đủ với khí A thu được 19,2 gam đơn chất rắn. Kim loại M là
A. Ca
B. Mg
C. Fe
D. Zn
Nung 22,4 gam kim loại M (hoá trị 2) với lưu huỳnh dư thu được chất rắn X. Cho chất rắn X tác dụng hoàn toàn với lượng dư dung dịch HCl thu được khí A và 6,4 gam bã rắn không tan. Làm khô chất bã rắn rồi đốt cháy hoàn toàn thu được khí B. Khí B phản ứng vừa đủ với khí A thu được 19,2 gam đơn chất rắn. Kim loại M là
A. Ca
B. Mg
C. Fe
D. Zn
Nung 22,4 gam kim loại M hoá trị 2 với lưu huỳnh dư, sau phản ứng hoàn toàn thu được chất rắn X. Cho chất rắn X tác dụng hoàn toàn với lượng dư dung dịch HCl thu được khí Y và 6,4 gam bã rắn không tan. Làm khô chất bã rắn rồi đốt cháy hoàn toàn thu được khí Z. Khí Z phản ứng vừa đủ với khí Y thu được 19,2 gam đơn chất rắn. Vậy M là:
A. Ca
B. Mg
C. Fe
D. Zn.
Nhiệt phân hoàn toàn 31,6 gam KMnO4 thu được chất rắn A gồm K2MnO4, MnO2 và khí O2. Lượng khí O2 thu được cho tác dụng với 11,2 gam sắt thu được chất rắn B. Tính khối lượng của chất rắn A và chất rắn B
Ta có: \(n_{KMnO_4}=\dfrac{31,6}{158}=0,2\left(mol\right)\)
PT: \(2KMnO_4\underrightarrow{t^o}K_2MnO_4+MnO_2+O_2\)
Theo PT: \(n_{K_2MnO_4}=n_{MnO_2}=n_{O_2}=\dfrac{1}{2}n_{KMnO_4}=0,1\left(mol\right)\)
\(\Rightarrow m_A=m_{K_2MnO_4}+m_{MnO_2}=0,1.197+0,1.87=28,4\left(g\right)\)
Ta có: \(n_{Fe}=\dfrac{11,2}{56}=0,2\left(mol\right)\)
PT: \(3Fe+2O_2\underrightarrow{t^o}Fe_3O_4\)
Xét tỉ lệ: \(\dfrac{0,2}{3}>\dfrac{0,1}{2}\), ta được Fe dư.
Chất rắn B gồm: Fe3O4 và Fe dư.
⇒ mB = mFe3O4 + mFe (dư) = mFe + mO2 = 11,2 + 0,1.32 = 14,4 (g)
Nung m gam hỗn hợp A gồm KMnO4 và KClO3 thu được chất rắn B và khí O2. Lúc đó KClO3 phân hủy hoàn toàn, còn KMnO4 phân hủy không hoàn toàn. Trong B có 0,894 gam KCl chiếm 8,132% khối lượng. Trộn lượng O2 thu được ở trên với không khí (có phần trăm thể tích: 20% O2; 80% N2) theo tỉ lệ thể tích tương ứng là 1:3 tạo thành hỗn hợp khí C. Cho toàn bộ khí C vào bình chứa 0,528 gam cacbon rồi đốt cháy hết cacbon thu được hỗn hợp khí D gồm 3 khí trong đó O2 chiếm 17,083% về thể tích.
a) Tính phần trăm khối lượng mỗi chất có trong A.
b) Thêm 74,5 gam KCl vào chất rắn B được hỗn hợp E. Cho E vào dung dịch H2SO4 loãng dư, đun nóng nhẹ cho đến phản ứng hoàn toàn. Tính thể tích khí thoát ra ở điều kiện tiêu chuẩn.
Cho m gam X gồm các este của CH3OH với axit cacboxylic và 0,1 mol glyxin tác dụng vừa đủ với dung dịch NaOH thu được dung dịch Y. Cô cạn Y, rồi đốt cháy hoàn toàn chất rắn, thu được hỗn hợp khí, hơi Z gồm CO2, H2O, N2 và 0,3 mol chất rắn Na2CO3. Hấp thụ Z vào dung dịch Ca(OH)2 dư, thu được 80 gam kết tủa và khối lượng dung dịch giảm 34,9 gam so với ban đầu. Biết các phản ứng xảy ra hoàn toàn. Phần trăm khối lượng của glyxin trong X là
A. 16,67.
B. 17,65.
C. 21,13.
D. 20,27.
Cho m gam X gồm các este của CH3OH với axit cacboxylic và 0,1 mol glyxin tác dụng vừa đủ với dung dịch NaOH thu được dung dịch Y. Cô cạn Y, rồi đốt cháy hoàn toàn chất rắn, thu được hỗn hợp khí, hơi Z gồm CO2, H2O, N2 và 0,3 mol chất rắn Na2CO3. Hấp thụ Z vào dung dịch Ca(OH)2 dư, thu được 80 gam kết tủa và khối lượng dung dịch giảm 34,9 gam so với ban đầu. Biết các phản ứng xảy ra hoàn toàn. Phần trăm khối lượng của glyxin trong X là
A. 16,67
B. 17,65
C. 21,13
D. 20,27
Cho 8,28 gam chất hữu cơ A chứa C, H, O (có công thức phân tử trùng với công thức đơn giản nhất) tác dụng với dung dịch NaOH vừa đủ, sau đó chưng khô, phần hơi thu được chỉ có nước, phần chất rắn khan B có khối lượng 13,32 gam. Nung lượng chất rắn này trong khí O2 (dư), sau phản ứng hoàn toàn thu được 9,54 gam Na2CO3; 14,52 gam CO2 và 2,7 gam nước. Cho chất rắn B tác dụng với dung dịch H2SO4 loãng (dư), thu được hai chất hữu cơ X, Y (biết MX < MY). Số nguyên tử hiđro có trong Y là
A. 10
B. 8.
C. 2.
D. 6.
Chọn D.
Khi cho 8,28 gam A tác dụng với NaOH thì:
Khi đốt hỗn hợp rắn khan thì:
Theo đề A có CTPT trùng với CTĐG nhất của A nên CTPT của A là C 7 H 6 O 3
Nhận thấy rằng
Phương trình phản ứng:
Cho hỗn hợp rắn qua H2SO4 dư thu được HCOOH (X) và C6H4(OH)2 (Y). Số nguyên tử H trong Y là 6.