calorimitry

When 15.00mL of 3.00MNaOH was mixed in a calorimeter with 14.30mL of 3.00MHCl, both initially at room temperature 22.00C ), the temperature increased to 30.80C. The resultant salt solution had a mass of 29.30g and a specific heat capacity of 3.74JK1g1. What is the heat capacity of the calorimeter ( in J/C) ? Note: The molar enthalpy of neutralization per mole of HCl is 55.84kJmol1