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March 28, 2015

Homework Help: in chem

Posted by Help on Monday, December 24, 2012 at 4:38pm.

calculate the mass of this sample:
1.05 * 10 to the power of 26 atoms of neon, Ne(g)
I know that I have to first divide by the avagadros constant, then once get the moles I need to multiply by the molar mass of neon to get the grams, I did that sevral times but I keep on getting the wrong answer... the correct answer is 3.5*10 to the power of 3.. Please show me the steps properly..:) Thanks!

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