Asked by lizzie

2.241g sample of nickel reacts w oxygen to form 2.85g of the metal oxide. Calculate the empirical formula of the oxide?
Answered by DrBob222
Convert 2.241 g Ni to mols.
Determine mass oxygen fron mass metal oxide - mass metal = mass oxygen.
Convert g oxygen to mols oxygen ATOMS.
Deterime ratio of atoms. Those will be the subscripts. Post your work if you get stuck.
Answered by lizzie
n= 2.241/14.00=.1600
.1600/.0382=4.189


o=.611/16.00= .0382
.0382/.0382=0

I cant seem to get a whole # for the nickel
Answered by DrBob222
Nickel is Ni. You are using N = 14.00
Not the same thing.
Answered by lizzie
i looked up the wronge symbol. the answer i got was NiO
Answered by DrBob222
NiO is correct.
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