Question

How many atoms of iron are there in 2.5 moles of each of the following? a. wolframite, FeWO $_{4}$ b. pyrite, $\mathrm{FeS}_{2}$ c. magnetite, $\mathrm{Fe}_{3} \mathrm{O}_{4}$ d. hematite, $\mathrm{Fe}_{2} \mathrm{O}_{3}$

          How many atoms of iron are there in 2.5 moles of each of the following?
a. wolframite, FeWO $_{4}$
b. pyrite, $\mathrm{FeS}_{2}$
c. magnetite, $\mathrm{Fe}_{3} \mathrm{O}_{4}$
d. hematite, $\mathrm{Fe}_{2} \mathrm{O}_{3}$

Added by Irene B.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Madhur L

04/06/2023

Step 1

a. In wolframite, FeWO$_4$, there is 1 mole of iron for every mole of the compound. So, in 2.5 moles of wolframite, there are 2.5 moles of iron. b. In pyrite, FeS$_2$, there is 1 mole of iron for every mole of the compound. So, in 2.5 moles of pyrite, there are Show more…

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How many atoms of iron are there in 2.5 moles of each of the following? a. wolframite, FeWO $_{4}$ b. pyrite, $\mathrm{FeS}_{2}$ c. magnetite, $\mathrm{Fe}_{3} \mathrm{O}_{4}$ d. hematite, $\mathrm{Fe}_{2} \mathrm{O}_{3}$