足量的铝粉放入0.1mol/L200mL稀硫酸,
盐酸全部用完,H2SO4=0.1*0.2=0.02mol
2Al+3H2SO4=Al2(SO4)3+3H2↑
1 1
0.02ml x
得H2=0.02mol
生成标准状况下的H2的体积为0.02mol×22.4L/mol=0.448L