Предмет: Химия, автор: tischenko26032009

У реакцію з сульфатною кислотою вступив натрій мазою 4.6 г. Обчислити масу сл

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Ответы

Автор ответа: dyexfnf
0

Ответ:

Объяснение:

4,6 г                         х г

2 Na + H2SO4 → Na2SO4 + H2

n = 2 моль           n = 1 моль

M = 23 г/моль     М = 142 г/моль

m = 46 г               m = 142 г

m(Na2SO4) = 4,6 * 142 : 46 = 14,2г

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