2. A 1-L gas cylinder contains 3 g CO2, 0.035 lb H2 and 0.04 kg CH4. a. What are the partial volumes of each gas? b. What is the total pressure of the gas cylinder at 22 F? c. What will be the final pressure if the temperature was increased to 373 K?3. 3. The Orsat analysis (% mol and water-free basis) of combustion gases is as follows: 0.99 % CO, 1.99 % H2, 6.36% O2 and 81.71% N2. If the partial pressure of water is 76 mmHg and the total pressure of the combustion gases is 760 mmHg: a. What is the mass fraction of all the components in a water-free basis? b. What is the mole fraction of all the components including water? c. What is the average molecular weight of the gases? 4. Find the (a) molality, (b) normality , and (c) parts per million concentration of an aqueous solution containing 0.18 %mass H2SO4. 5. An aqueous HNO3 solution contains 1.623 kg HNO3 / kg H2O and has a specific gravity of 1.304 at 20 0C. Express the composition of the solution in: a. weight percent of HNO3 b. lbm HNO3 / ft3 solution at 20 0C c. molarit