Предмет: Химия, автор: tanea99

помогитее
Дано:
m(р.вещ-ва)=500 г
W(р.ещ-ва)=10%
найти:
m(р-ра)-?
m( H_{2} O)-?
V( H_{2} O)-?

Ответы

Автор ответа: udodovi
0
м р-ра=м в-ва*100%/ω=500*100%/10%=5000г
м воды = м р-ра-м в-ва=5000-500г=4500г
V(H2O)=m/ρ=4500г/1г/мл=4500мл=4,5л

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