Question

What is the formula mass of FeO3?

Answer 1

can you show me how to do it with all your work make sure it is the correct unit labels please! thank you

Answer 2

What's a formula mass?

Answer 3

55.847 (mass of Fe) + 3(15.999) (mass of 3 oxygen's) = 103.844 g

Answer 4

wait thats the formula of it?

Answer 5

that is how you find the formula mass.

Answer 6

im confused now

Answer 7

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.

Answer 8

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.

Answer 9

Do it steps @Tttaammmaannnaa

Answer 10

so the mass os 103.844 right?

Answer 11

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

Answer 12

the mass of Fe is 55.847. sorry

Answer 13

so the answer is 103.844

Answer 14

yes

Answer 15

ok thank you so much that helped a lot thank you again!