A collapsed balloon is filled with He to a volume of 12.5 L at a pressure of 1.00 atm. Oxygen, O2, is then added so that the final volume of the balloon is 26 L with a total pressure of 1.00 atm. The temperature, which remains constant throughout, is 21.5 °C. a)What mass of He does the balloon contain? b)What is the final partial pressure of He in the balloon? c)What is the partial pressure of O2 in the balloon? d)What is the mole fraction of each gas?

Q: At constant temperature, the pressure on a 6.0 L sample of gas is increased from 1.0 to 2.0 atm.…

A: Boyle's law This law states that the absolute pressure exerted by a given mass of an ideal gas is…

Q: A gas cylinder contains 2.45 mol He, 1.85 mol Ne, and 2.15 mol Ar. If the total pressure in the…

A:

Q: 9. Within a balloon, there are three types of gases. The first gas, NH, is 5.7 the second gas, CH.,…

A: First we will calculate mole fraction of each gas , and then by multiplying it with total pressure…

Q: 1. Calculate the pressure of 3.50 Liters of a gas at 25.0 C if it has a volume of 4.50 Liters at…

A: 1) Given data contains, Volume (V2) of a gas is 3.50 L. Temperature (T2) is 25°C=298 K. Pressure…

Q: A large balloon has an original volume of 1.0 m3 when it is released from the ground.  When the…

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Q: 8 Methane gas is compressed from 20. L to 2.5 L at a constant temperature. The final pressure is…

A:

Q: 13.2 g of CO2 is mixed with 3.20 g of CH4 in a 4.00 L flask at a temperature of 11.2°C. What is the…

A:

Q: A gaseous mixture is made by mixing Gas A and Gas B together. The mixture is 58.2 mole % of Gas A.…

A: Given, Mol % of gas A = 58.2 % Total pressure of the mixture = 3.52 atm Pressure of gas B in the…

Q: QUESTION 19 A 7.82 L cylinder contains 1.08 mol of gas A and 4.08 mol of gas B, at a temperature of…

A:

Q: A sample of gas with an initial volume of 9.35 L at a pressure of 784 torr and a temperature of 295…

A: Initial volume of gas (V1) = 9.35 L Initial temperature of gas (T1) = 295 K Initial pressure of gas…

Q: A 1.00 g sample of water vaporizes completely inside a 10.0 L container at 150°C. What is the…

A: To solve this problem we will use Ideal gas equation which is given as PV= nRT  Where,  P= pressure…

Q: A sample of gas is in a 0.800-L piston chamber at a temperature of 25 C and a pressure of 2.28 atm.…

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Q: The total pressure exerted by a mixture of hydrogen, oxygen, and nitrogen gases is 2.2 atm. The…

A: Given  Total pressure  ( P ) = 2.2 atm   Partial pressure of oxygen  ( PO2 )   = 1 atm  Partial…

Q: A flexible container at an initial volume of 8.15 L contains 9.51 mol of gas. More gas is then added…

A: At constant temperature and pressure, the volume of the gas is directly proportional to the number…

Q: A container with 1.00 mol of gas is expanded from 5.00 L to 10.0 L by adding more gas. How many…

A: Using avagadro law of gases we can find final moles of gas at constant temperature and pressure.

Q: A 0.425 mol sample of Ar (g) in a 5.00 L flask at 45°C exerts a pressure of 2.218 atm. Which of the…

A: PV = nRT So, P α n       P α T       P α 1/V

Q: A flexible container at an initial volume of 4.11 L contains 7.51 mol of gas. More gas is then added…

A:

Q: A container of N₂O3(g) has a pressure of 0.295 atm. When the absolute temperature of the N₂O3(g) is…

A: Ideal gas equation is  PV = nRT  Where,  P is pressure of the gas  V is volume of the gas n is no.…

Q: 2.0 moles of  Ne gas are placed in a steel box and the pressure is measured. An identical box at the…

A: Answer :option b is the correct answer The pressure in the both box will be equal . We know  PV=nRT…

Q: A 7.60 L container holds a mixture of two gasses at 51 degrees celsius. The partial pressures of gas…

A: The ideal gas equation can be written as: Here, P = pressure, V = volume of the container that…

Q: sample of dry air of total mass 1.000 g consists of 0.300 g of nitrogen, N2(g), and 0.700 g of…

A: Weight of N2 = 0.300 gram Weight of O2 = 0.700 gram  Volume= 2.080 L   Temperature= 27 °C = 273+27=…

Q: A sample containing 17.5 moles of carbon monoxide (CO) has an initial volume of 22.4 L. What is  the…

A: Given that -  Initial volume of carbon monoxide gas V1 = 22.4 L  Initial number of moles of carbon…

Q: A tank contains a mixture of He(g), Ne(g), and Ar(g). The total pressure of the of the mixture is…

A: Given that, A tank contains a mixture of He(g), Ne(g), and Ar(g) gases.the total pressure of the…

Q: An ideal gas is allowed to expand from 2.00 L to 7.00 L at constant temperature. By what factor does…

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Q: 2.- A sample of hydrogen gas initially at .85 atm is cooled from 10°C to -40°C at a constant volume.…

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Q: A sample of neon gas at a pressure of 0.695 atm and a temperature of 21.4°C, occupies a volume of…

A: Boyle's law This law states that the absolute pressure exerted by a given mass of an ideal gas is…

Q: The volume of H2O2 give was 5.00 mL. The temperature is 21.4 C. Suppose the gas that was collected…

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.