01.04.2022

Какая масса соли выделится при взаимодействии алюминия с 300 гр. 29,4%-го раствора серной кислоты H2SO4?

Вопрос школьника по предмету Химия

Ответ учителя по предмету Химия

2Al+3H2SO4=Al2(SO4)3+3H2

m(H2SO4)=300*0,294=88,2г

n(H2SO4)=88,2/98=0,9 моль

По мольному отношению, n(Al2(SO4)3)=0,3моль

m(Al2(SO4)3)=0,3*342=102,6г

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