Ta có: \(n_{C_2H_6O}=\dfrac{9,2}{46}=0,2\left(mol\right)\)
PT: \(C_2H_6O+3O_2\underrightarrow{t^o}2CO_2+3H_2O\)
____0,2_____0,6___0,4 (mol)
a, Ta có: \(V_{O_2}=0,6.22,4=13,44\left(l\right)\)
\(\Rightarrow V_{kk}=\dfrac{13,44}{20\%}=67,2\left(l\right)\)
b, PT: \(CO_2+2NaOH\rightarrow Na_2CO_3+H_2O\)
_____0,4_____0,8 (mol)
\(\Rightarrow m_{NaOH}=0,8.40=32\left(g\right)\)
\(\Rightarrow m_{ddNaOH}=\dfrac{32}{50\%}=64\left(g\right)\)
Bạn tham khảo nhé!
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