KNO3M(KNO3) = 39+14+48= 101 г/мольw(K) = 39/101*100%= 39%K2SO4M(K2SO4) = 78+ 32+ 64= 174 г/мольw(K)= 78/174*100%=45%
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KNO3
M(KNO3) = 39+14+48= 101 г/моль
w(K) = 39/101*100%= 39%
K2SO4
M(K2SO4) = 78+ 32+ 64= 174 г/моль
w(K)= 78/174*100%=45%