Предмет: Химия, автор: rajabovibrohim77

ПОЖАЛУЙСТА ПОМОГИТЕ ДАЮ 55 БАЛЛОВ Сожгли 2 тонны метана ( CH4).Вычислить сколько тонн воздуха для этого потребовалось.

Ответы

Автор ответа: M5lW9

0

Ответ:

..........................

Объяснение:

Приложения:

Автор ответа: dubkovgleb474

1

Ответ:

8 тонн

Объяснение:

CH4+2O2=CO2+2H2O

n(CH4)=m/M

M(CH4)=16

n(CH4)=2000000г/16г/моль=125000 моль

По пропорции: n(CH4)/n(O2)=0,5÷125000/х=> х=250000моль

m(O2)=M×n

m(O2)=250000×32=8000000г=8т

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