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March 29, 2015

March 29, 2015

Posted by **Abby** on Thursday, June 21, 2012 at 9:00pm.

X (s)+H2O (l) ---> X (aq)

and the temperature of the solution increases to 26.0 degrees C.

Calculate the enthalpy change, Delta H, for this reaction per mole of X.

Assume that the specific heat and density of the resulting solution are equal to those of water [4.18 J/(g C) and 1.00 g/mL] and that no heat is lost to the calorimeter itself, nor to the surroundings.

I have been stuck on this question and have only 1 attempt left. I am unsure of the steps to get to the answer. Please explain?

- Chemistry -
**DrBob222**, Friday, June 22, 2012 at 12:26amq = mass H2O x specific heat H2O x (Tfinal-Tinitial)

Then delta H = q/g = q/1.50g

delta H/mol = (q/1.50)* 65.0 = ? J/mol

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