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Mumz [18]
3 years ago
13

Please help I will mark brainly

Chemistry
2 answers:
sveticcg [70]3 years ago
6 0

Hydrogen peroxide - 2 hydrogen 2 oxygen

ammonia - 1 nitrogen 3 hydrogen

propane gas - 3 carbon 8 hydrogen

o-na [289]3 years ago
4 0
2 atoms of hydrogen
2 atoms of oxygen

1 atom of nitrogen
3 atoms of hydrogen

3 atoms of carbon
8 atoms of hydrogen
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The molecular mass of a 2.66g sample of gas at a temperature of pressure of 845torr and occupying a volume of 0.70L is 84.16g/mol.

<h3>How to calculate molecular mass?</h3>

The molecular mass can be calculated by first calculating the number of moles using the following formula:

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Where;

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Therefore, the molecular mass of a 2.66g sample of gas at a temperature of pressure of 845torr and occupying a volume of 0.70L is 84.16g/mol.

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