NaCl
M(NaCl)=58 г/моль
w(Na)=23/58*100%=40%
w()=100%-40%=60%
CO
M(CO)=28 г/мольw(O)=16/28*100%=43%w(C)=12/28*100%=57%
BaO
M(BaO)=153 г/мольw(Ba)=137/153*100%=90%w(O)=100%-90%=10%
AgCl
M(AgCl)=143 г/моль
w(Ag)=108/143*100%=76%
w(Cl)=100%-76%=24%
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Answers & Comments
M(ZnO)=81 г/моль
w(Zn)=65/81*100%=80%
w(O)=100%-80%=20%
NaCl
M(NaCl)=58 г/моль
w(Na)=23/58*100%=40%
w()=100%-40%=60%
CO
M(CO)=28 г/моль
w(O)=16/28*100%=43%
w(C)=12/28*100%=57%
BaO
M(BaO)=153 г/моль
w(Ba)=137/153*100%=90%
w(O)=100%-90%=10%
AgCl
M(AgCl)=143 г/моль
w(Ag)=108/143*100%=76%
w(Cl)=100%-76%=24%