H' (aq) + OH-(aq) → H2O(1) NH3, c sure of the heat of neutralization is -56.2 kJ mol-1. What is the final temperature of the mixed solution? 3.39 When 1.034 g of naphthalene (C1oHs) are com- this rea 3.46 T pletely burned in a constant-volume bomb calorimeter acid a at 298 K, 41.56 kJ of heat is evolved. Calculate the values of A, U and A,H for the reaction. water respe isome Thermochemistry 3.40 Consider the following reaction: 2CH3OH(I) + 3O2(g) → 4H20(1) + 2CO2 (g) A,Ho-1452.8 kJ mol-1 What is the value of Δ,Ho if (a) the equation is multi- plied throughout by 2, (b) the direction of the reaction is reversed so that the products become the reactants and vice versa, and (c) water vapor instead of liquid water is the product? 3.41 Which of the following standard enthalpy of for- mation values is not zero at 25°C? Na(s), Ne(g), CH4(9), S8 (s), Hg(), H(g). 3.42 The standard enthalpies of formation of ions in aqueous solution are obtained by arbitrarily assigning a value of zero to H+ ions; that is, ΔΗ'H+(aq)]-0. 3.4 an 3 (a) For the following reaction, HCl (g)--H+ (aq) + Cl-(aq) A,H' -74.9 kJ mol-1

1. 2. If gasoline has a volume of 2.753 ft3, Calculate the weight of gasoline in kilograms if its density is 1.3 slugs/ft°. aontaino A..:...:4L -pecific

Sugar reacts with concentrated sulfuric acid in an exothermic reaction called the "Carbon Snake" reaction, according to the balanced equation below.2 C12H22011 (s) + 2 H2SO 4 (aq) + 02 (g) > 22 C (s) + 2 CO2 (g) + 24 H20 (g) + 2 SO2 (g)How many grams of solid carbon is produced from the reaction of 23.00 mL of a 10.00% (m/m) sulfuric acid solution with excess sugar? The density of the sulfuric acid solution is 1.573 g/mL

Assume that the buret below was previously filled to the 0.00 mL mark. What volume of reagent has been delivered? (Remember to estimate between the lines to get one more digit than can be read from the scale and include units!) 1. 2.