Дано
m(C2H5OH)=46 g
m(Na)=46 g
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m(H2)-?
V(H2)-?
M(C2H5OH)=46 g/mol
n(C2H5OH)=m/M=46/46 = 1 mol
M(Na)=23 g/mol
n(Na)=m/M=46/23=2 mol
n(C2H5OH)M(H2)=2 g/mol
46 X
2C2H5OH+2Na-->2C2H5ONa+H2
2*46 2
X=46*2 / 92 = 1 g
46 X
2C2H5OH+2Na-->2C2H5ONa+H2
2*46 22.4 Vm=22.4 L/mol
X=46*22.4 / 92
X=11.2 L
ответ 1 г, 11.2 л