Предмет: Химия, автор: Лиличка25

Сколько литров (н.у.) водорода образуется при взаимодействии алюминия с 365 г 10%-й соляной кислоты?

Ответы

Автор ответа: shuhnina
0
находим массу кислоты HCL в растворе = 365*10/100% =36,5г
2AL + 6HCL = 2ALCL3 + 3H2
находим количество вещества кислоты= 36,5г/36,5г/моль =1моль
находим количество вещества Н2 по уравнению реакции
6моль(HCL)------- 3моль(Н2)
1моль( HCL)------ Х моль(Н2)        Х = 0,5моль(Н2)
находим объем водорода = 0,5моль*22,4л/моль =11,2л(Н2)


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заранее большое спасибо )