Вычислите процентную концентрацию 8 М раствора HN03 (плотность равна 1,25 г/см3)
m(HNO3)р-ра =1000*1,25=1250г;
m(HNO3)в р-ре =8*63=504г;
W(HNO3)=504/1250=0,4032(40,32%).
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m(HNO3)р-ра =1000*1,25=1250г;
m(HNO3)в р-ре =8*63=504г;
W(HNO3)=504/1250=0,4032(40,32%).
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