November 28, 2015

Homework Help: Chemistry=MOLES!

Posted by Justin on Tuesday, January 1, 2008 at 1:21pm.

I'm having trouble converting moles to grams and finding the mass of molecules.

Problems I'm stuck on:
What is the mass in grams of .99x10^49 Sodium Chloride Molecules?

and How many moles of Cu are in 9.61 grams?

and How many moles are in 5.94x10^45 Ne atoms?

I just really need to know how to solve these. Thanks.

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