A sample of iron (III) contains 4.9 x 10 to 21st atoms of oxygen. What is...

Question

Question

A sample of iron (III) contains 4.9 x 10 to 21st atoms of oxygen. What is the mass in grams?

Answer 1

Answer #1

Iron (II) oxide is Fe,o, 23 Calculate the number of moles of Fe,O, in 4.9x1021 oxygen atoms using the following connversion:

Answer 2

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