K2CO3×xH2O
m(K2CO3)=0,3×276=82,8
M(K2CO3)=138
M(xH2O)=18x
138 - 82,8 г
18х - (104,4-82,8)=21,6г
18х=36
х=2
K2CO3×2H2O
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K2CO3×xH2O
m(K2CO3)=0,3×276=82,8
M(K2CO3)=138
M(xH2O)=18x
138 - 82,8 г
18х - (104,4-82,8)=21,6г
18х=36
х=2
K2CO3×2H2O