Question
Fe3O4 + 4 H2 -> 3 Fe + 4 H2O
What mass (g) of Fe3O4 would be needed to
react with 1.38 x 10^3 mol H2?
What mass (g) of Fe3O4 would be needed to
react with 1.38 x 10^3 mol H2?
Answers
DrBob222
Damon answered your question on your first post and I answered the one on moles below that. What's the problem?
Anonymous
The answer doesn't match with Damon's post. His mass came out way too high.
DrBob222
Do you want me to look at it and repost here if needed?
Anonymous
Yes please!
DrBob222
Yes, Damon's response, as noted in that response, is he though it was 1.38E3 L (and not mols).
Here is the question again.
<b>Fe3O4 + 4 H2 -> 3 Fe + 4 H2O
What mass (g) of Fe3O4 would be needed to
react with 1.38 x 10^3 mol H2? </b>
1.38E3 mols H2 x (1 mol Fe3O4/4 mols H2) = 345 mols Fe3O4
g Fe3O4 = mols Fe3O4 x molar mass Fe3O4
g Fe3O4 = 345 x 231.54 = 7.99E4 grams.
Here is the question again.
<b>Fe3O4 + 4 H2 -> 3 Fe + 4 H2O
What mass (g) of Fe3O4 would be needed to
react with 1.38 x 10^3 mol H2? </b>
1.38E3 mols H2 x (1 mol Fe3O4/4 mols H2) = 345 mols Fe3O4
g Fe3O4 = mols Fe3O4 x molar mass Fe3O4
g Fe3O4 = 345 x 231.54 = 7.99E4 grams.
DrBob222
I just looked at Damon's response again and I don't see anything wrong with it. The answer I posted is almost the same as the answer he posted. The only difference is he rounded the molar mass of Fe3O4 from 231.54 (which I used) to 232. Other than that there is no difference.