katiaciceron1568 katiaciceron1568 17-06-2024 Chemistry Answered A 2.00 liter evacuated container has a mass of 1050.0g. When the container is filled with an unknown gas at 800 mm Hg and 25.0°C the mass is 1052.4 g. What is the molar mass of the gas? a. 28 b. 31 с. 54 d. 56