(1)设,生成氢气的质量是X.
Zn + 2HCl = ZnCl2 + H2
1.3g X
65 2
1.3/65=X/2
求得X=0.04g
(2)每升氢气的质量是0089g,
0.04g/0.089g/l=0.449L
答;生成氢气0.45L