Answer to Question #129950 in General Chemistry for Mary

Question

Hi,
When a solution of NaOH is neutralized by hydrochloric acid, the solution gets hot.

Calculate the temperature change of the solution (in K).

Mass of combined solution = 125 g
Heat change of the solution = 3490 J
Specific heat capacity of the solution = 4.18 J/g·K

Please Give your answer to three significant figures.Thanks

Answer 1

Ans.

Total mass of the solution = 125 g

Heat change of the solution = 3490 J

Specific heat capacity of the solution = 4.18 J/gK

Temperature change of the solution ={3490/(4.18 x 125)} K = 6.679 K (Ans.)