Homework Help: chemistry

Posted by Cathy on Sunday, November 11, 2012 at 6:28pm.

Calculate the number of moles in 75.0 g of oxygen gas.
A. 2.34 mol O2
B. 4.69 mol O2
C. 750 mol O2
D. 12.5 × 1023 mol O2

B

chemistry - DrBob222, Sunday, November 11, 2012 at 10:12pm
No.
mols O2 = 75.0/32 = ?
I suspect you divided by 16.

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