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christinewilliams
 3 years ago
What is the formula mass of FeO3?
christinewilliams
 3 years ago
What is the formula mass of FeO3?

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christinewilliams
 3 years ago
Best ResponseYou've already chosen the best response.0can you show me how to do it with all your work make sure it is the correct unit labels please! thank you

Tttaammmaannnaa
 3 years ago
Best ResponseYou've already chosen the best response.255.847 (mass of Fe) + 3(15.999) (mass of 3 oxygen's) = 103.844 g

christinewilliams
 3 years ago
Best ResponseYou've already chosen the best response.0wait thats the formula of it?

Tttaammmaannnaa
 3 years ago
Best ResponseYou've already chosen the best response.2that is how you find the formula mass.

christinewilliams
 3 years ago
Best ResponseYou've already chosen the best response.0im confused now

Tttaammmaannnaa
 3 years ago
Best ResponseYou've already chosen the best response.2there 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.

abb0t
 3 years ago
Best ResponseYou've already chosen the best response.0To 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.

NotTim
 3 years ago
Best ResponseYou've already chosen the best response.0Do it steps @Tttaammmaannnaa

christinewilliams
 3 years ago
Best ResponseYou've already chosen the best response.0so the mass os 103.844 right?

Tttaammmaannnaa
 3 years ago
Best ResponseYou've already chosen the best response.2Since 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

Tttaammmaannnaa
 3 years ago
Best ResponseYou've already chosen the best response.2the mass of Fe is 55.847. sorry

christinewilliams
 3 years ago
Best ResponseYou've already chosen the best response.0so the answer is 103.844

christinewilliams
 3 years ago
Best ResponseYou've already chosen the best response.0ok thank you so much that helped a lot thank you again!
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