Предмет: Химия, автор: kasenovtair18

2. Определите массу углерода, прореагировавшего с кислородом, если в результате реакции образовался оксид углерода СО2 массой 88 граммов.​

Приложения:

Ответы

Автор ответа: dyexfnf
4

Ответ:

Объяснение:

Дано:

m(CO2) = 88 г

Найти: m(C) - ?

Составим УХР:

С + О2 = СО2

Вычислим количество вещества оксида углерода:

М(СО2) = 12 + 16 * 2 = 44 г/моль

n(CO2) = m(CO2)/М(СО2) = 88/44 = 2 моль

Из УХР видим, что n(CO2) : n(C) = 1 : 1 , то есть

n(C) = n(CO2) = 2 моль

m(C) = n(CO2) * М(С) = 2 * 12 = 24 г

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