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Определите массу осадка полученного при сливании 17 г нитрата серебра с 14 г хлорида кальция.
Ответы 1
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2AgNO3 + CaCl2 - Ca(NO3)2 +2AgCl(осадок)m(AgNO3)=340гm(CaCl2)=111гm(2AgCl)=287г17:340меньше14:111. поэтому берем пропорцию 17:340. 17:340=х:287 х=14,35г.m(AgCL) = 14,35 г
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Автор:
roryk1ok - 5 лет назад
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