Предмет: Химия, автор: en0t22

сколько грамм сульфита натрия потребуется для приготовления 5л 8% раствора, плотность которого равна 1,075г/мл​

Ответы

Автор ответа: vitaminka4979
3
m (p) = p*V = 1.075*5000 = 5375 г - масса раствора Na2SO3
m (Na2SO3) = m(p)*w = 5375*0.08 = 430 г
Автор ответа: Honduras
2

5 литров расвора весят 5*1,075*1000=5375 г

Масса сульфита натрия в 5 л 8% раствора равна

м=0,08*5375=430г

Ответ: 430 г

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