(Q1) Select the correct answer: (30 Points 1. How many grams of aluminum (27 g/mol) are required to prepare 6.2 g of potassi alum (474 g/mol)? a. 0.35 g b. 0.91 g c. 1.21 g d. 8.13 g 2. A 0.147 g of vapor occupies a measured volume of 140 mL, at 98.7C and a pre- of 699 torr. What is the molar mass of the vapor? a. 70.2 g/mol b. 34.8 g/mol c. 82.9 g/mol d. 66.4 g/mol 3. How many mL of 0.11 M NaOH solution are required to react with 0.157 g KHP g/mol)? a. 16.3 mL b. 7.0 mL c. 18.7 mL d. 14.0 mL (30 Points) 1. How many grams of aluminum (27 g/mol) are required to prepare 16.0 g of potassium alum (474 g/mol)? a. 0.35 g b. 0.91 g c. 1.21 g d. 8.13 g 2. A 0.350 g of vapor occupies a measured volume of 140 mL, at 98.7C and a pressure of 699 torr. What is the molar mass of the vapor? a. 70.2 g/mol b. 34.8 g/mol c. 82.9 g/mol d. 66.4 g/mol 3. How manum