When 0.236 mol of a weak base (A^-)is reacted with excess HCl,6.91 kJ of energy is released as heat.What is $\Delta$H for this reaction per mole of A^- consumed?

Question

Quizplus · Accepted Answer

The heat released in the reaction is given as 6.91 kJ for 0.236 mol of the weak base (A^-). The molar heat of reaction can be calculated by dividing the heat of reaction by the number of moles of weak base consumed. Molar heat of reaction = 6.91 kJ / 0.236 mol = 29.28 kJ/mol The molar enthalpy change of reaction is given by the negative of the molar heat of reaction as energy is released in the reaction. ∆H = -29.28 kJ/mol Therefore, the answer is (C) -29.3 kJ.

When 0236 Mol of a Weak Base (A-)is Reacted with Excess

When 0236 Mol of a Weak Base (A^-)is Reacted with Excess