b4:
a, PTHH:
\(4Fe+3O_2\underrightarrow{t^o}2Fe_2O_3\)
0,5-->0,375---->0,25
\(mO_2=0,375.32=12g\)
b,PTHH:
\(2Zn+O_2\underrightarrow{t^o}2ZnO\)
1,5-->0,75--->1,5
\(mO_2=0,75.32=24g\)
c,\(nP=\dfrac{3,1}{31}=0.1mol\)
PTHH:
\(4P+5O_2\underrightarrow{t^o}2P_2O_5\)
0,1->0,125->0,05
\(mO_2=0,125.32=4g\)
d,\(nS=\dfrac{6,4}{32}=0,2mol\)
PTHH:
\(S+O_2\underrightarrow{t^o}SO_2\)
0,2->0,2-->0,2
\(mO_2=0,2.32=6,4g\)
e, \(nCH_4=\dfrac{1,6}{16}=0,1mol\)
PTHH:
\(CH_4+2O_2\underrightarrow{t^o}CO_2+2H_2O\)
0,1----->0,2-->0,1---->0,2
\(mO_2=0,2.32=6,4g\)
f, \(nC_4H_{10}=\dfrac{0,58}{58}=0,01mol\)
PTHH:
\(2C_4H_{10}+13O_2\underrightarrow{t^o}8CO_2+10H_2O\)
0,01--->0,0625-->0,04---->0,05
\(mO_2=0,0625.32=2g\)
c, \(4P+5O_2\underrightarrow{t^o}2P_2O_5\)
3,1 3,875 ( mol )
\(\Rightarrow m_{O_2}=3,875.32=124g\)
d, \(S+O_2\underrightarrow{t^o}SO_2\)
6,4 6,4 ( mol )
\(\Rightarrow m_{O_2}=6,4.32=204,8g\)
e, \(CH_4+2O_2\underrightarrow{t^o}CO_2+2H_2O\)
1,6 3,2 ( mol )
\(\Rightarrow m_{O_2}=3,2.32=102,4g\)
f, \(2C_4H_{10}+13O_2\underrightarrow{t^o}8CO_2+10H_2O\)
0,58 3,77 ( mol )
\(\Rightarrow m_{O_2}=3,77.32=120,64g\)
