Homework Help: chemistry

Posted by will.i.am on Wednesday, January 30, 2013 at 1:04pm.

4 P + 5 O2 ==> P4O10

If you have 24.98 grams of P and 74.99 grams of O2, how many moles of each compound do you have present?

chemistry - Devron, Wednesday, January 30, 2013 at 1:54pm
Take the weight of each and divide them by their respective molecular weights.

e.g.

24.98 g of P *(1 mole of P/31.0g of P)= moles of P

I'll let you do the other one.

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