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### Topic: How to figure out how much compund is needed for a certain reaction?  (Read 5351 times)

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#### Azein

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##### How to figure out how much compund is needed for a certain reaction?
« on: June 02, 2004, 04:14:37 AM »
Hi,
A little background info, I am doing a chemistry project, in which we are basically trying to produce about 500ml of H2
To do this, we are using the reaction of
2Al + 3H2SO4 -> 3H2 + Al2(SO4)3

The H2 are not at STP, but at 25oC and 1atm, so using the Charles Law, I found out that 3 moles of H2 is about 24,500ml in 25oC and 1atm. Out of that, I figured out that I only need 0.2 moles of H2 to produce roughly 500ml.

I am currently stuck at the next step, in which I need to figure out how many grams of Al, and how many ml of H2SO4 I will need.

Any help?

#### AWK

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##### Re:How to figure out how much compund is needed for a certain reaction?
« Reply #1 on: June 02, 2004, 06:47:50 AM »
You can find it from reaction:
0,2 moles of H2 is equivalent to 0.2 moles of pure H2SO4 and 0.133 mole of pure Al.
AWK

#### Azein

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##### Re:How to figure out how much compund is needed for a certain reaction?
« Reply #2 on: June 02, 2004, 11:33:59 PM »
Ah, I see.
Thank you for the help