дано
V(H2O) = 450 mL
m(соли) = 50 g
------------------------
W(соли)-?
p(H2O) = 1 g/ml
m(H2O) = p(H2O) * V(H2O) = 1*450 = 450 g
m(ppa) = m(H2O)+m(соли) = 450+50 = 500 g
W(соли) = m(соли) / m(ppa) * 100% = 50 / 500 * 100% = 10%
ответ 10 %
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дано
V(H2O) = 450 mL
m(соли) = 50 g
------------------------
W(соли)-?
p(H2O) = 1 g/ml
m(H2O) = p(H2O) * V(H2O) = 1*450 = 450 g
m(ppa) = m(H2O)+m(соли) = 450+50 = 500 g
W(соли) = m(соли) / m(ppa) * 100% = 50 / 500 * 100% = 10%
ответ 10 %