A `y` mL sаmple оf `x` M NаOH is mixed with а `y` mL sample оf `x` M HNO3 in a cоffee cup calorimeter. If both solutions were initially at `z`°C and the temperature of the resulting solution was recorded as `w`°C, determine the ΔH°rxn (in units of kJ/mol of NaOH) for the neutralization reaction between aqueous NaOH and HCl. Assume that no heat is lost to the calorimeter or the surroundings. Use 1.00 g/mL as the density of the solution and C=4.18 J/(g*oC) as the specific heat capacity. Submit your final answer rounded to 1 decimal place.