The Enthalpy Change When a Strong Acid Is Neutralized by Strong

The enthalpy change when a strong acid is neutralized by strong base is -56.1 kJ/mol. If 12.0 mL of 6.00 M HBr at 21.30 ^$\circ$ C is mixed with 300. mL of 0.250 M NaOH, also at 21.30 ^$\circ$ C, what is the maximum temperature reached by the resulting solution (Assume that there is no heat loss to the container, that the specific heat of the final solution is 4.18 J/g· ^$\circ$ C, and that the density of the final solution is that of water.)

A) 18.20 ^$\circ$ C
B) 24.40 ^$\circ$ C
C) 24.53 ^$\circ$ C
D) 34.25 ^$\circ$ C
E) 101.8 ^$\circ$ C

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