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Enthalpy of Formation

Q. Determine the enthalpy change of Reaction 3: H2SO4 (l) → H2O(l) + SO3(g) using enthalpies of formation. Apply Hess's Law to determine enthalpy change for 2NaOH + SO3 → Na2SO4 + H2O(l).

Solved • Apr 18, 2019

Enthalpy of Formation

Q. Use heats of formation to determine enthalpy of reaction for the reaction between gaseous N2O5 and liquid water to produce aqueous product.

Solved • Apr 10, 2019

Enthalpy of Formation

Q. If the heat of formation for CO2 is −393.5kJmol, what is the change in enthalpy when 5.00 g of CO2 are formed?

Solved • Apr 5, 2019

Enthalpy of Formation

Q. Calculate the standard enthalpy change for the following reaction at 25 °C. Standard enthalpy of formation values can be found in this table. MgCl2 (s)+H2O(l)-->MgO(s)+2HCl(g)

Solved • Mar 30, 2019

Enthalpy of Formation

Q. The value of ΔH° for the reaction below is -790 kJ. The enthalpy change accompanying the reaction of 0.95 g of S is ________ kJ. 2S (s) + 3O2 (g) → 2SO3 (g)

Solved • Mar 27, 2019

Enthalpy of Formation

Q. Use the data in the table above to compute the delta H for NO(g) at 298K.

Solved • Mar 26, 2019

Enthalpy of Formation

Q. What is the heat of combustion of ethane, C2H6, in kilojoules per mole of ethane?

Solved • Mar 21, 2019