Mathematics, 20.01.2020 07:31 angelina0miles

Air is about 78% nitrogen gas (n2) by mass. the molar mass of nitrogen gas is 28.0 g/mol. a 100.0-g sample of air contains how many moles of nitrogen?

2.8
3.6
28
78

Answers: 2

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Air is about 78% nitrogen gas (n2) by mass. the molar mass of nitrogen gas is 28.0 g/mol. a 100.0-g...