February 23, 2017

Homework Help: chemistry

Posted by lala on Tuesday, September 28, 2010 at 11:28pm.

If a mole of hydrogen gas (H2) contains 6.02 x 10^23 molecules, how many molecules are there in 10.0 moles of hydrogen gas?

60.20 x 10^23 molecules
6.0 x 10^23 molecules
6.02 x 10^20 molecules
6.02 x 10^24 molecules
None of these is correct.

would it be 6.02x10^24 or none of these, i am only confused because avogadro # can be 10 moles or 1 mole or any thing quantity.

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