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December 18, 2014

Homework Help: chem

Posted by hannah on Friday, November 12, 2010 at 5:20pm.

A 2.241 g sample of nickel reacts with oxygen to form 2.852 g of the metal oxide. Calculate the empirical formula of the oxide.
1)NiO

Give the number of moles of each element to support you answer.

moles of Ni
2) 1.339 mol
moles of O
3)1.34 mol


I know #1 is correct but 2 and 3 are wrong. i need help

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