Ответ: 14% (13,78%)
m(soli)=300×0,17=51г
плюс 70 г Н2О
W(soli) = 51 ÷ (300+70) × 100% = 13,78%
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Ответ: 14% (13,78%)
m(soli)=300×0,17=51г
плюс 70 г Н2О
W(soli) = 51 ÷ (300+70) × 100% = 13,78%