Lyndsey D. answered • 03/02/21

Hello!

Total volume of your solution = 25.8 mL + 25.8 mL = 51.6 mL

Mass of solution (M) = volume • density

51.6 mL • 1.00 g/ml = 51.6 g

Change in temperature (ΔT) = 30.17 º C - 23.5 º C = 6.67º C

Specific heat capacity(c) = 4.184 j/g•ºC

ΔH = -q

= -mcΔT

= - (51.6 g) • (4.184 J/g•ºC) • (6.67ºC)

= -1440.02 J

**= -1.44 kJ**

The fact that the answer is negative shows that the reaction is exothermic.

Hope this helps!