Barium oxide reacts with sulfuric acid as follows: Bao(s) + H2SO4(1) → Baso4(s) + H20(1) Calculate A,H for this reaction. The following thermochemical equations can be used: so;(9) + H20(1)→ H2SO4(1) A,H8 - -78.2 k) mol-1 Bao(s) + SO3(g) → Baso4(s) A,Hô = -213 kJmol-1 H2SO4(1) → SO3(9) + H2O(I) Bao(s) + SO3(9) → BasO4(s) kJ Bao(s) + H2SO4(1) → BasO4(s) + H2O(1) kJ

When HCl(g) reacts with NH3(g) to form NH4CI(s) , 176 kJ of energy are evolved for each mole of HCl(g) that reacts. Write a balanced thermochemical equation for the reaction with an energy term in kJ as part of the equation. Note that the answer box for the energy term is case sensitive. Use the SMALLEST INTEGER coefficients possible and put the energy term (including the units) in the last box on the appropriate side of the equation. If a box is not needed, leave it blank. + + +

In a coffee cup calorimeter, 10.0mL of 1.00M AgNo3 and 10.0mLof 1.00M NaCl are mixed and the following reaction occurs (assume reaction goes to completion) Ag+ (aq) + Cl-(aq) ----> AgCl(s) The 2 solutions are intitially at 25.0C and the final temperature is 36.2C. Assuming density of the solution is 1.00g/mL and the heat capactity of the solution is 4.18J/K/g. Calculate q for the reaction in KJ

4. What mass of propane must be burned to supply 700. kJ as heat? The thermochemical equation for the combustion of propane is: C3H8(g) + 5 O2(g) → 3 CO2(g) + 4H₂O(1) AH°-2220. kJ

Liquid hydrogen peroxide, an oxidizing agent in many rocket fuel mixtures, releases oxygen gas on decomposition:  2 H2O2 (l) --> 2H2O (l) + O2 (g) Delta H = -196.1 kJ Calculate the heat for the decomposition of 780. kg of H2O2.

Use the following information to answer the question:   What is the ΔH (in kJ/mol) for the following reaction? (Show work) CS2(l) + 3 O2(g) → CO2(g) + 2 SO2(g) Given: C(s) + O2(g) → CO2(g); ΔHf = -393.5 kJ/mol S(s) + O2(g) → SO2(g); ΔHf = -296.8 kJ/mol C(s) + 2 S(s) → CS2(l); ΔHf = 87.9 kJ/mol

The reaction between hydrogen and oxygen to yield water vapor has AH" = -1843 2H₂(g) + O₂(g) 2H₂O(g)AH <=-484kJ Part A What is the enthalpy change in kilojoules when 0.70 mol of H₂ reacts with 0.35 mol of O, to produce 0.70 mol of H₂ at constant pressure of 1.00 atm? Express your answer as a whole number. AH = Submit Part B W= Submit 1957 ΑΣΦ How much PV work is done in kilojoules for this reaction at constant pressure of 1.00 atm if the volume change is-9-2 L? Express your answer using two significant figures. 100 ΑΣΦΑ Part C Request Answer Request Answer kJ What is the value of AE for this reaction in kilojoules?

How much energy is liberated when 600.2g of O2 is reacted with propane in a combustion tank. Assume: C3H8(g) + 5CO2(g)—> 3CO2(g) + 4H2O(g) ; delta H reaction= -2044 kJ