Homework Help: chemistry

Posted by Marian on Saturday, November 10, 2012 at 10:07pm.

How many moles are in 1.50 x 1023 molecules NH3?
A. 2.49 x 10 -1 mol NH3
B. 2.49 x 101 mol NH3
C. 2.65 x 10 -1 mol NH3
D. 2.78 x 10 1 mol NH3

maybe B

chemistry - DrBob222, Saturday, November 10, 2012 at 10:10pm
I don't think so. There are 6.02E23 things in a mole of things.
chemistry - Marian, Saturday, November 10, 2012 at 10:20pm
A
chemistry - DrBob222, Saturday, November 10, 2012 at 10:20pm
yes.

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