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Qwertyasasasq
@Qwertyasasasq
July 2022
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Найти нужный объем воды (р=1г/мл) для приготовления 250 г 20% раствора соли
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Answers & Comments
shakha2017
Verified answer
W(h2o)=100%-W(соли)=100-20=80%
m(h2o)=80*250/100=200г
V=m/p=200/1=200мл
3 votes
Thanks 2
qmxz
Verified answer
M соли= 250*20/100=50г
m воды = 250-50=200г
V=200/1=200мл
1 votes
Thanks 1
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Answers & Comments
Verified answer
W(h2o)=100%-W(соли)=100-20=80%m(h2o)=80*250/100=200г
V=m/p=200/1=200мл
Verified answer
M соли= 250*20/100=50гm воды = 250-50=200г
V=200/1=200мл