1. Consider the two molecules below. Propanoic acid Lactic acid 3. 3. H 10! -C H. H. Produced by bacteria in human sweat glands. Produced in the muscle cells during exercise. K, = 1.3 x 105 = 1.4 x 104 a) Identify the most acidic hydrogen atom in each of the two molecules. Explain your choice in 1-2 sentences. b) Explain the difference in K, values between these two molecules in 1-2 sentences. c) What is the pH of a solution made by dissolving 6.25 g of lactic acid in water to a total volume of 100.0 mL? d) If 1.50 g of sodium hydroxide is added to the solution in part c, what will be the new pH of the solution?