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Inmagion
@Inmagion
July 2022
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Дано:
m (р-ра) Ca(No3)2=32,8г
Омега Ca(No3)2=15%
+K3PO4
Найти: m осадка
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DochMerlina
3Ca(NO3)2+ 2K3PO4--->2Ca3(PO4)2+ 6KNO3
n=3 n=2
M=164 M=190
m=492 m=380
m(Ca(NO3)2=30,8*15/100=4,62
m(Ca3PO4)2)=4,62/492=х/380
х=3.5грамм
Ca3(PO4)2=3.56
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Answers & Comments
n=3 n=2
M=164 M=190
m=492 m=380
m(Ca(NO3)2=30,8*15/100=4,62
m(Ca3PO4)2)=4,62/492=х/380
х=3.5грамм
Ca3(PO4)2=3.56