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poty210Sanek
@poty210Sanek
June 2022
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к 450 г 15 раствора поваренной соли добавили 100 г вещества Определите массовую долю вещества в полученном растворе
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gusmakvlad
M=450*0.15=67.5 г соли было
m=67.5+100=167.5 г соли стало
m=450+100=550 г раствора
w=167.5/550*100%=30.5%
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Answers & Comments
m=67.5+100=167.5 г соли стало
m=450+100=550 г раствора
w=167.5/550*100%=30.5%