M(K2CrO4) = 194 w(K2)= 78/194=0.4020,т.е. 40,2% w(Cr)=52/194=0.268,т.е. 26,8% w(O4)=64/194= 0.331,т.е. = 33,1% Пусть m(K2CrO4) = 100г,то m(K2)=40.22г m(Cr)=26.8г m(O4)=39.1г, m(Cr):m(K2) = 1:1.5 m(Cr):m(O4) = 1:1.5