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mihailovamishana
@mihailovamishana
June 2021
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В 30 - процентный раствор соли, масса которого равна 750 г, долили 150г води.Сколько % соли содержит образованный раствор?
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Slig
M1(соль) = 30% * 750г / 100% = 225г
m2(р-р) = 750г + 150г = 900г
W2 = 225г / 900г * 100% = 25%
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Answers & Comments
m2(р-р) = 750г + 150г = 900г
W2 = 225г / 900г * 100% = 25%