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сколько грамм серной кислоты надо для реакции с 8 г оксида кальция?
Ответы 1
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CaO + H2SO4 = CaSO4 + H2Оn(CaO) = m/M = 8 г /56 г/моль = 0,14 мольn(H2SO4) = n(CaO) = 0,14 моль - по уравнению хим.реакцииm(H2SO4) = n*M = 0,14 моль * 98 г/моль = 13,72 гОтвет: 13,72 г
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Автор:
austinasqu - 5 лет назад
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