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Question 13 (1 point) What is the molar mass of a gas if a flask with...
A flask with a volume of 3.16 L contains 9.33 g of an unknown gas at 32.0°C and 1.00 atm. What is the molar mass of the gas? (R = 0.08206 L • atm/K • mol) Multiple Choice 18 Ο 776 g/mol Ο 144 g/mol Ο 66.1 g/mol Ο 739 g/mol Ο 81.4 g/mol
1)What is the molar mass of a gas if 1.07 grams of the gas in a 0.539 L flask at 296 K has a pressure of 1.275 atm? Use R = 0.08206 Latm/molK 2)A 8.7 L cylinder contains a sample of gas at 15.7 atm. What pressure would the gas be in a 6.7 L cylinder at this same temperature? Report your answer in atmospheres to the correct number of significant figures.
What is the molar mass of a gas that has a density of 2.62 g/L at 2.00 atm and 25.0 degree C? 2.69 g/mol 64.0 g/mol 28.0 g/mol 32.0 g/mol 16.0 g/mol What volume is occupied by 1.00 mol of an ideal gas at 1.00 atm and 0.00degreeC? 27.2 L 15.0 L 22.4 L 22.7 L 22.1 L
A flask contains 1.00 L of a pure gas at 0.850 atm and 20.0 °C. The mass of the gas is 1.13 g. a) What is the molar mass of the gas? (use the correct sig. fig as well as the units) b) What is its identity?
A flask contains 1.00 L of a pure gas at 0.850 atm and 20.0°C. The mass of the gas is 1.13 g. a) What is the molar mass of the gas? (use the correct sig. fig as well as the units b) What is its identity? arades eople A mixture of gases containing 21.0 g of N2, 106.5 g of Cly, and 120 g of He at 14 °C is in a 50.0L container. What is the total pressure in...
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: y/mol
Need help answering all questions;1,2,3,4,5, and 6 Homework Assignment 1. If 0.623 g of ethane gas (C.H.) is introduced into an evacuate 2.00 L container at 23deg C, what is the pressure in atm in the container? 2. A sample of phosgene (COCI) is collected in a flask with a volume of 247 ml at a pressure of 751 mmHg and a temperature of 21 deg C. The mass of gas is 1.00 g. What is the molar mass? 3....
A flask with a volume of 1.02 L contains 14.58 g of an unknown gas at 35.1 °C and 846 torr. What is the molar mass of the unknown in g/mol? Report your answer to TWO places past the decimal. Do not include units. The gas constant R = 0.082058 L⋅atm/mol⋅K and 1 atm = 760 torr.
Please help with these two 1. A flask is filled with 1.08 moles of a gas at 20.7 K and 646.8 mm Hg. The flask is then opened and an additional 1.33 moles are added. The temperature of the flask is then changed to 272.4 K. What is the pressure (in atm) of the flask under these final conditions? 2. The density of a gas is 4.22 g/L at a pressure of 1.77 atm and a temperature of 14.66 °C. What...
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