2.241g sample of nickel reacts w oxygen to form 2.85g of the metal oxide. Calculate the empirical formula of the oxide?

Answer 1

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.

Answer 2

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

Answer 3

Nickel is Ni. You are using N = 14.00
Not the same thing.

Answer 4

i looked up the wronge symbol. the answer i got was NiO

Answer 5

NiO is correct.