Предмет: Химия, автор: dvoecnikl228

при взаимодействии калия массой 3,9 грамм с хлором образовался хлорид калия вычислите массу образовавшегося хлорида калия.

Ответы

Автор ответа: wasurenagusa

2K + Cl2 = 2KCl
n = m/M
n(K) = 3,9/39 = 0,1 моль = n(KCl)
m(KCl) = 74,5*0,1 = 7,45 г

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