Question

When 22.3 mL of 1.00 M AgNO3 is mixed with 21.7 mL of 1.50 M NaCl, the temperature of the mixture rises for 21.6 degrees C to 29.7 degrees C. The mass of the aqueous mixture is 45.9 grams and its specific heat capacity is 3.94 J/grams degrees C. I calculated (45.9g)x (3.94J/g Celsius) x (8.1 Celsius), which came out to 1464.8526 Joules. How do I use this into solving for Delta H?

Answer 1

Delta H is that heat divided by moles of AgCl formed....you have to calculate that.

Answer 2

doesnt the concentration come into play some how?

Answer 3

Yes and that's what Mr. Pursley told you. You must calculate the mols AgCl.