Объяснение:
m1=350г
w1=12%
m(H2O)=100г
w2=?
w(речовини)= m1w1/(m1+m(H2O)) = 350•0.12/(350+100)= 42/450= 0.093 (9.3%)
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Объяснение:
m1=350г
w1=12%
m(H2O)=100г
w2=?
w(речовини)= m1w1/(m1+m(H2O)) = 350•0.12/(350+100)= 42/450= 0.093 (9.3%)