Предмет: Химия, автор: foobden

с. CO2 3. Если в реакцию вступает 11,1г гидроксикарбоната меди, найдите количесво вещества образовавшейся воды и объем углекислого газа Cuz(OH)2CO3 = CuO + CO2 + H2O
плиз ПОЖАЛУЙСТА ДАМ 80 БАЛЛЛЛЛ​

Приложения:

Ответы

Автор ответа: dyexfnf
1

Ответ:

Объяснение:

Дано:

m(Cu₂(OH)₂CO₃) = 11,1 г

Найти: n(H₂O) - ? V(CO₂) - ?

Вычислим количество вещества гидроксикарбоната меди:

М(Cu₂(OH)₂CO₃) = 64 * 2 + (16 + 1) * 2 + 12 + 16 * 3 = 222 г/моль

n(Cu₂(OH)₂CO₃) = m(Cu₂(OH)₂CO₃)/М(Cu₂(OH)₂CO₃) = 11,1/222 = 0,05 моль

Складемо РХР:

Cu₂(OH)₂CO₃ = CuO + CO₂ + H₂O

Из УХР видим, что n(Cu₂(OH)₂CO₃) : n(H₂O) = 1 : 1, поэтому

n(H₂O) = n(Cu₂(OH)₂CO₃) = 0,05 моль

n(Cu₂(OH)₂CO₃) : n(CO₂) = 1 : 1, поэтому

n(CO₂) = n(Cu₂(OH)₂CO₃) = 0,05 моль , тогда

V(CO₂) = n(CO₂) * Vm = 0,05 * 22,4 = 1,12л

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