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christinewilliams
What is the formula mass of FeO3?
can you show me how to do it with all your work make sure it is the correct unit labels please! thank you
55.847 (mass of Fe) + 3(15.999) (mass of 3 oxygen's) = 103.844 g
wait thats the formula of it?
that is how you find the formula mass.
im confused now
there is one Iron, Fe, and 3 Oxygen, O. So you add the Fe, 55.847 + 3*15.999, which is the mass of oxygen. the mass of oxygen is 15.999 but since there are 3 of them you have to multiply 3 and 15.999 and add that to 55.847 to get the total mass which is 103.844 g.
To find the mass of the formula, you look at the periodic table Fe = ______ g O = 3( ______)g you mutiply by three b/ there are 3 oxygens. You then proceed to add evrything to get the mass.
Do it steps @Tttaammmaannnaa
so the mass os 103.844 right?
Since there is one Iron, Fe. the mass is 55.487. The mass of 3 oxygen's is 47.997. Add 55.487 and 47.997 and you get 103.844
the mass of Fe is 55.847. sorry
so the answer is 103.844
ok thank you so much that helped a lot thank you again!