12. Compute the molar mass of an unknown pure ideal gas if 3.88 g sample of...
What is the molar mass of a 0.199-g sample of an unknown (ideal gas occupying a 125-ml. Erlenmeyer fiask-whose measured volume is 152 ml-at a temperature of 98.7°C and pressure of 754 torr. 40.3 mol 189 g/mol 605 g/mol 107 gimol
O GASES Christ Interconverting molar mass and density of ideal gases A sample of an unknown compound is vaporized at 190. °C. The gas produced has a volume of 2130. mL at a pressure of 1.00 atm, and it weighs 1.80 g. Assuming the gas behaves as an ideal gas under these conditions, calculate the molar mass of the compound. Round your answer to 3 significant digits. mol
O GASES Interconverting molar mass and density of Ideal gases A sample of an unknown compound is vaporized at 110 °C. The gas produced has a volume of 1070. ml. at a pressure of 1.00 atm, and it weighs 1.72 g. Assuming the gas behaves as an ideal gas under these conditions, calculate the molar mass of the compound. Round your answer to 3 significant digits. 1xlml?
A 0.49 g sample of an ideal gas in a 200 ml container at 26 °C exerts a pressure of 0.98 atm. What is the molar mass of this gas (in g/mol)? NOTE: The molar mass you calculate may not correspond to a real-life gas (don't try to identify the gas). You have 5 attempts at this question. Answer: Check
Question 10 of 22 A 4.05 g sample of an unknown gas at 35 °C and 1.05 atm is stored in a 2.15 L flask. What is the density of the gas? density: 1.88372 g/L What is the molar mass of the gas? molar mass: g/mol Incorrect Question 14 of 22 A gas mixture is made by combining 6.7 g each of Ar, Ne, and an unknown diatomic gas. At STP, the mixture occupies a volume of 15.14 L. What...
A sample of an unknown gas is found to have a density of 1.53 g/L at a pressure of 0.612 atm and a temperature of 48 °C. Assume ideal behavior. The molar mass of the unknown gas is ? g/mol.
Experiment 12: Generating Hydrogen Gas Part B: Molar mass of unknown metal Unknown #: Mass of unknown metal (X) .29 Volume of H2 gas L mL Temperature of H; gas 20 mm к C Atmospheric pressure (see barometer) Vapor pressure of water mmHg Partial pressure of H; gas mmHg atm Using PV-nRT and your data, calculate the moles of hydrogen gas produced in the experiment: l e epl8 moles H Convert moles of hydrogen gas to moles of the metal...
A sample of an unknown gas is found to have a density of 2.53 g/L at a pressure of 1.04 atm and a temperature of 49 °C. Assume ideal behavior. The molar mass of the unknown gas is ___________g/mol.
A sample of oxygen gas has a density of g/L at a pressure of 0.912 atm and a temperature of 47 °C. Assume ideal behavior. A 3.20 gram sample of an unknown gas is found to occupy a volume of 0.939 L at a pressure of 970 . mmHg and a temperature of 46 °C. Assume ideal behavior. The molar mass of the unknown gas is g/mol.
Question 12 of 34 > A 1.25 g sample of an unknown gas at 23 "C and 1.00 atm is stored in a 2.85 L flask. What is the density of the gas? density: What is the molar mass of the gas? molar mass: g/mol