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August 1, 2015

Homework Help: Ap Chemistry Help

Posted by mhaidar9108 on Wednesday, February 6, 2008 at 12:41am.

3.) One method used in the eighteen century to generate hydrogen was to pass steam through red-hot steel tubes. The following reaction takes place:
3Fe(s)+4H20(g)--->Fe3O4(s)+4H2(g)

2. What mass of iraon will react with 500.0 L of steam at 25 degrees C and 1.00 atm pressure?

3. If 285g of Fe3O4 are formed, what volume of hydrogen, measured at 20 degrees C and 1.06 atm, is produced?

I dont understand have to use which formula to plug in which numbers for number two in order to find the answers, or for number three.

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