W(HCl) = [m(HCl)/m(р-ра)]*100% = [50/200]*100%= 25%
Дано:
m(H2O) = 150 г
m(HCl) = 50 г
Найти
W(HCl)
W(HCl) = m(HCl) / m(HCl) +m(H2O) *100%
W(HCl) = 50 / 50+150 *100% = 25%
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W(HCl) = [m(HCl)/m(р-ра)]*100% = [50/200]*100%= 25%
Дано:
m(H2O) = 150 г
m(HCl) = 50 г
Найти
W(HCl)
W(HCl) = m(HCl) / m(HCl) +m(H2O) *100%
W(HCl) = 50 / 50+150 *100% = 25%