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RizaHawkeye123
@RizaHawkeye123
July 2022
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Вычислите концентрацию в % полученного раствора при добавлении в 240 г 50%-го раствора 260 г воды.
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wasurenagusa
ω% = m в-ва*100%/m р-ра
m в-ва = ω%*m р-ра/
100% = 50*240/100 = 120 г
m р-ра (2) = 260 + 240 = 500 г
ω% = 120*100/500 = 24%
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Answers & Comments
m в-ва = ω%*m р-ра/100% = 50*240/100 = 120 г
m р-ра (2) = 260 + 240 = 500 г
ω% = 120*100/500 = 24%