a sample of gas stored at stp has a volume of 7.0L. the gas is cooled to 250 k and expands to a volume of 8.0L. what is the pressure of the gas after it is cooled?

Q: A sample of an ideal gas at 1.00 atm and a volume of 1.90 L was placed in a weighted balloon and…

A: Applying Boyle’s law P1V1 = P2V2  where P1 V1 are initial pressure and volume  P2 , V2 are final…

Q: A 8.350 L sample of gas is cooled from 85.50°C to a temperature at which its volume is 6.950 L.…

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Q: An experiment shows that a 110 mL gas sample has a mass of 0.170 g at a pressure of 744 mmHg and a…

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Q: A mixture of carbon dioxide and helium gases, in a 7.15 L flask at 50 °C, contains 13.4 grams of…

A: We can use ideal gas equation to calculate the partial pressure of each gas. The ideal gas equation…

Q: mixture

A: When two or more gases are mixed together to form a gaseous mixture, each gas exerts its own…

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

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Q: A sample of neon with a molar mass of 20.18g/mol has a volume  of 2.00L under a pressure  of 1.10…

A: According to ideal gas law, Assuming amount of substance and R constant the final and initial…

Q: A 1.92 L flask is filled with 2.52 g of some gas (molar mass 42.100g/mol) at 23.1°C. A different…

A: Given: Volume , V = 1.92 L Temperature = 23.1°C = 296.25K No. Of moles gas= 2.52g/42.1gmol-1= 0.0598…

Q: A mixture of methane and neon gases, in a 5.79 L flask at 55 °C, contains 4.14 grams of methane and…

A: Given  Volume ( V ) = 5.79 Liter  Temperature ( T )  = 55 ℃                               = ( 55 +…

Q: Three monoatomic gases (neon, argon, and an unknown gas) are allowed to mix at room temperature…

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Q: A mixture of oxygen and neon gases, in a 9.80 L flask at 59 °C, contains 15.3 grams of oxygen and…

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Q: A sample of helium gas at a pressure of 727 torr and a temperature of 23.8°C, occupies a volume of…

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Q: A mixture of neon and argon gases, in a 7.40L flask at 48 °C, contains 1.63 grams of neon and 11.1…

A: Given :-  mass of Neon = 1.63 g  mass of Argon = 11.1 g  volume = 7.40 L  temperature = 48°C  To be…

Q: A sample of hydrogen gas occupies a volume of 8.58 L at 48.0°C and 0.540 atm. If it is desired to…

A: Initial volume (V1) = 8.58 L Initial temperature (T1) = 48.0°C Initial Pressure (P1) = 0.549 atm…

Q: A 3.21 L sample of nitrogen gas, N2, contains 0.254 mol of nitrogen, N2. If nitrogen is added to the…

A: Avogadro's Law :-  It states that, volume is directly proportional to number of moles of gas at…

Q: A mixture of gases has a total pressure of 7.66 atm. If the mixture is composed of two gases, and…

A: This question is based on the Dalton's law of partial pressure, which states that the partial…

Q: A mixture of hydrogen and carbon dioxide gases, in a 6.09 L flask at 31 °C, contains 0.236 grams of…

A: The formula of partial pressure of any gas pi can be given by---------------- pi = Ptotal × xi where…

Q: A gas mixture consists of 320. mg of methane, 175 mg of argon, and 255 mg of neon. The total…

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Q: CO2 was added to a cylinder containing 2.5 atm of O2 to give a total pressure of 4.0 atm of gas.…

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Q: A gas sample occupying a volume of 87.5 mL at a pressure of 0.887 atm is allowed to expand at…

A: According to Boyle's law, the relation between the volume of the gas and the pressure of the gas are…

Q: A mixture of 10.0 g of Ne and 20.0 g Ar have a total pressure of 1.5 atm. What is the partial…

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Q: flexible container at an initial volume of 3.10 L3.10 L contains 9.51 mol9.51 mol of gas. More gas…

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Q: A sample of oxygen gas occupies a volume of 7.54 L at 49.0°C and 0.940 atm. If it is desired to…

A: Given :- P1 = 0.940 atm  V1 = 7.54 L  T1 = 49.0°C  P2 = 1.17 atm  V2 = 6.17 L  To calculate :-  T2…

Q: A gaseous mixture containing 7.5 mol He and 2.6 mol NO2 has a total pressure of 10.1 atm. What is…

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Q: A sample of neon gas occupies a volume of 8.35 L at 44.0°C and 0.960 atm. If it is desired to…

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Q: A sample of gas at 35.8 psi is heated from 25.0 °C to 100.0 °C. Assuming the volume is constant,…

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Q: A sample of gas occupies 28.6 L at 105 °C. If the gas is cooled to 25.5 °C, determine the new volume…

A: According to Charle's law, the volume of gas is directly proportional to absolute temperature of gas…

Q: An experiment shows that a 111 mL gas sample has a mass of 0.171 g at a pressure of 742 mmHg and a…

A: As from the question,Volume of gas (V) = 111 mLPressure (P) =742 mmHg.Temperature (T) = 32˚C.Mass of…

Q: A sample of helium gas at a pressure of 604 torr and a temperature of 23.6°C, occupies a volume of…

A: Given : P1 = 604 torr   P2 = 903 torr T1 = 23.6 °C     T2 = T1 V1 = 817 ml We know, at constant…

Q: 6. A mixture of 9.9 g of Xenon (Xe) gas and 2.5g of Argon (Ar) gas has a total pressure of 40.5 atm.…

A: According to the question,The mass of the Xe gas is given by = 9.9 gThe mass of the Ar gas is given…

Q: A mixture of helium and carbon dioxide gases, in a 7.08 L flask at 81 °C, contains 1.17 grams of…

A: First the partial pressure of helium in the flask is calculated.

Q: A gas occupying a volume of 669.0 mL at a pressure of 0.852 atm is allowed to expand at constant…

A: From Boyles laws, P1V1= P2V2 V1 = initial volume = 669.0  mL P1 = initial pressure = 0.852 atm V2 =…

Q: A 8.350 L sample of gas is cooled from 81.50°C to a temperature at which its volume is 6.950 L. What…

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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.