Question

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

Please Calculate the change in heat of the solution (in J).

Mass of combined solution = 37.5 g

Temperature change of the solution = 3.50 K

Specific heat capacity of the solution = 4.18 J/g·K

Give your answer to three significant figures.

Answer 1

$Q=m\times c\times\Delta T=37.5\times3.50\times4.18=548.6 J$