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Вопрос по химии:
Определить массу сульфата бария, который получится при взаимодействии 20 г хлорида бария с серной кислотой.
Задания:
а) Составление уравнения реакции взаимодействия хлорида с серной кислотой.
б) Расчеты по уравнению реакции.-
Автор:
olson
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Дано:
m(BaCl2) = 20 г
Найти:
m(BaSO4) - ?
Решение:
BaCl2 + H2SO4 = BaSO4 + 2HCl
n(BaCl2) = m(BaCl2)/M(BaCl2) = 20/208 = 0,096 моль
n(BaSO4) = n(BaCl2) = 0,096 моль
m(BaSO4) = n(BaSO4)*M(BaSO4) = 0,096*233 = 22,37 г
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