. (Enthalpy, Rxn Curves, Endo/Exo) Questions 1-3 of 5 | Page 1 of 2
Question 1 (1 point)
5.00 g of NaOH are dissolved in 0.100 kg of water at 20 °C. After dissolving, the final temperature was
33.2°C.
Determine the change in enthalpy (AH) in kJ/mol for NaOH.
q=m. C.AT
c=4.184 kJ/kg.
moles g + molar mass
(remember, you are calculating the AH for the water, you need to make it the opposite sign for the
crystals)
Оа
O.
Oc
Od
Oe
+44.2 kj/mol
+1.10 kj/mol
-111 kJ/mol
-44.2 kJ/mol
+111 kJ/mol
-1.10 kJ/mol
Question 2 (1 point)