2Al+3H2SO4=Al2(SO4)3+3H2
2 3
n(H2)=17,9:22,4=0,8моль;n(Al)=05моль;m(Al)=0,5*27=14,4г;W(Al)=14,4г:16,3г=0,88(88%)
2Al+3H2SO4=Al2(SO4)3+3H2
2 3
n(H2)=17,9:22,4=0,8моль;n(Al)=05моль;m(Al)=0,5*27=14,4г;W(Al)=14,4г:16,3г=0,88(88%)