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Well, it depends on what measurements you are using for the MW of H. Say you refer to a mole as 6.022x1023 and H is 1.008. This means that one mole of H weighs 1.008 g. So you use this conversion. Probally a homework problem so i think you can use a calculator. 5.00g H X 1 mol H ---- 1 X 1.008g H

Anyone feel free to correct me!

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16y ago

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9mo ago

To determine the number of moles of hydrogen gas present, you need to know the volume and pressure of the gas, as well as the temperature. You can then use the ideal gas law (PV = nRT) to calculate the number of moles of hydrogen gas.

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14y ago

moles are a form of measurement of amount so..

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Wiki User

13y ago

5.0 grams hydrogen gas (1 mole H2/2.016 grams)

= 2.5 moles hydrogen gas

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Wiki User

9y ago

You get one mole per gram of gas...so it depends on how much you have.

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14y ago

10 grams of H2

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14y ago

5/18 = 0.2778 moles

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9y ago

1 mol of hydrogen is 2 g.

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12y ago

10 g

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Q: How many moles are present in hydrogen gas?
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