q = mass x specific heat x ((Tfinal-Tinitial0
You know mass is 200 g
Specific heat is given in J
You have Tfinal and Tinitial.
Substitute and solve for q. Remember this is an exothermic reaction (it gives off heat), so place a negative sign for the number is J. Convert to kJ.
Most problems I've seen like this ask for kJ/mol but you only asked for kJ of heat so I stopped there.
A 100.00 ml of volume of 0.500 M HCl was mixed with 100.00 ml of 0.500 M KOH in a constant pressure calorimeter. The initial temperature of individual acid and base was 23.0 oC. The final temperature after mixing was 25.5 oC. The specific heat of the solution was 3.97 J g-1 oC-1 Assume the density of the solution is 1.00 g mL-1
a) Calculate the heat of the reaction in kJ. (Be sure to use signs correctly.)
2 answers
-1.985