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Calculate the formula mass (Mr) of the compound iron (III) oxide, Fe2O3. (show working)
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25 votes
Calculate the formula mass (Mr) of the compound iron (III) oxide, Fe2O3.
(show working)

User Mikescher
by
5.5k points

1 Answer

8 votes

Answer:

100

Step-by-step explanation:

Fe = 26 (look on periodic table)

O = 16

(26×2) + (16×3) = 100

User Deniszh
by
4.8k points
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