6. Determine the molar mass of an unknown gas that has a volume of 72.5 mL at a temperature of 68.0°C, and a pressure of 0.980 atm, and a mass of 0.207 g.
(hint: find moles first and remember that molar mass is the mass per mole”)

Asolution is made by dissolving 2.3 moles of sodium chloride (nacl) in 0.155 kilograms of water. if the molal boiling point constant for water (kb) is 0.51 °c/m, what would be the boiling point of this solution? show all the steps taken to solve this problem.