Homework Help: Chemistry

Posted by Doug on Friday, September 15, 2006 at 8:44pm.

Calculate the work done when 70.0g of tin dissolves in excess acid at 3.00 atm and -15.0 C.

Sn(s)+2H^+(aq) -> Sn^2+(aq)+H2(g)

Assume ideal gas behavior.

Any ideas? I've come up with a few different answers and can't come to a conclusion.

I see the following energies involved:
1) tHe ionization energy of Sn
2) the ionization energy of H+
3) the energy of formation of H2(g)

On 1) make certain the data reflects solid to aq. All of those ought to be standard table look ups. I dont have my Merck or CRC handy.

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