Chemistry molarity question?

George J

New member
The equation is
(4H3 P O3) ======> (3H3 PO4) + (P H3)

If you have 173 grams of (H3 P O3) what's the max amount of moles of (P H3) that can be produced.

I keep getting .5275, but the answer sheet says .509
 
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