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October 21, 2014

Homework Help: Chemistry

Posted by Sally on Thursday, January 24, 2013 at 11:17am.

The neutralization of H3PO4 with KOH is exothermic.

H3PO4(aq) + 3KOH(aq) -> 3H2O(l) +K3PO4(aq) +173.2KJ

70.0 mL of 0.207 M H3PO4 is mixed with 70.0 mL of 0.620 M KOH initially at 21.87 C. Predict the final temperature of the solution if its density is 1.13 g/mL and its specific heat is 3.78 J/(gC) Assume that the total volume is the sum of the individual volumes.

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