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July 2022
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Какую массу кристаллогидрата FeCl3*6H2O и какой объём H2O нужно взять для получения 900 мл 20% раствора FeCl3 (p p-pa=1,2 г/мл).
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DmitryImmortal
M(раствора FeCl3)=900*1,2=1080 г
m(FeCl3)=1080*0,2=216 г
m(FeCl3*6H2O)=270,5\162,5*216=359,56 г
m(H2O)=1080-359,56=720,44 г
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Answers & Comments
m(FeCl3)=1080*0,2=216 г
m(FeCl3*6H2O)=270,5\162,5*216=359,56 г
m(H2O)=1080-359,56=720,44 г