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Автор - n1a2d3y4

Молярная масса газа массой 0,84 г, занимающего объём 672 мл (н.у.), равна: 44, 28, 32, 16?

Ответ

Автор - Darius11
я думаю 28
1)n=V/Vm=0,672/22,4=0,03(нашли кол-во в-ва)( мл перевели в литры)
2)M=m/n=0.84/0,03=28
ответ:28

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