33. Nitric acid, HNO3, was first prepared 1200 years ago by heating naturally occurring sodium nitrate (called saltpeter) with sulfuric acid to produce sodium bisulfate and collecting the vapors of HNO3 produced as shown in the reaction below. Calculate AH® rxn for this reaction given: AH°¡[NaNO3(s)] = -467.8 kJ/mol AH°¡[NaHSO4(s)] = -1125.5 kJ/mol AH°¡[H2SO4(1)] = -814.0 kJ/mol AH°¡[HNO3(g)] = -135.1 kJ/mol. %3D %3D NaNO3(s) + H2SO4(1) => NaHSO4(s) + HNO3(g) a. 21.2 kJ b. -21.2 kJ C. -644.2 kJ d. 644.2 kJ e. -1606.8 kJ

In 2VO2+ (aq) + Zn(g) + 4H+ (aq) - 2VO2+ (aq) + Zn2+(aq) + 2H2O(l), 1. How many moles of electrons are transferred overall? 2. If E°cell = +1.76 V and Ecell = +1.25 V and [VO²⁺] and [VO₂⁺] are both 1.0 M, and the pH is 5.00, what is the [Zn²⁺]?

Suggest possible reasons for the difference between the experimental and calculated voltages.

25 1. T The specific heat of water is 4.18 J-g-¹ K-¹. How much heat is required to raise the temperature of 500 g of water from 20 °C to the boiling point (100 °C)? What is the molar heat capacity of water? Specific heat of 11₂0= 4₁185.5-1-14-1 motor mass of waver: 18,001g/mol mas of water = 5003 a. 5 D HRAMCAT Hear = 500g (thit 3). 2014 Initial Temp: 20%= 2931 molar hear capacity & spresse head capacting of w Anal Temp: 100% = 3731 Hear =? Molar heat coperty? Hent = 1672003 Hear = 167.23 = 4.182 * 75,23/10.19 2. In studying the energy generated by a person, you may view the person roughly as a constant pressure calorimeter using sugar (i.e., sucrose, C12H22O11) to generate power. The reaction of table sugar in a calorimeter is given by C. Q b. Calculate the enthalpy of combustion per mole of sugar utilization. Does the result of your calculation make sense? C12H22O11(s)+120₂(g) →12CO₂(g)+11H₂O+heat. →give the magnitudo (no sign is recessure) What is the heat released by consuming one…