the water. Now calculate the enthalpy change, AH, for this reaction. Remember that AH is always reported in units of kJ/mole. Knowing the mass of potassium hydroxide that combined with the hydrochloric acid,calculate the number of moles of KOH that reacted. Again calculate the enthalpy change, AH, for this reaction. You will need to use the qvalue for reaction #2 and the number of moles of KOH(s) just calculated above. From Reaction #1 above, again record the number of moles of KOH dissolved in the solution.moles However, you used 50-ml of this KOH solution and the diluted it with 50-ml of the HCI solution. Therefore, the number of moles of KOH reacting will be one-half the original amount. Therefore, calculate the number of moles used. Now calculate the enthalpy change, AH, for this reaction. You will need to use the q value for reaction #3 and the number of moles of KOH(s) calculated above to discover this value.
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