A sample of 3.50 moles of helium gas at 25 degree Celsius exert a pressure of 505 torr. When more helium gas was added to the container, the temperature increased at 40 degree celsius and the pressure increase to 725 torr. The volume of the container was kept constant. How many moles of gas were added to the container?

Q: A gas in a can of spray paint is initially at room temperature (30°C). On a particularly hot day,…

A:

Q: The volume of a sample of gas measured at 26 ºC and 0.986 atm is 10.50 liters.  What final…

A: from charles law: temperature and volume are directly realted using degrees kelvin. here both…

Q: The gas in a 0.317 L cylinder of a diesel engine exerts a pressure of 944 Torr at 57.0 celsius. The…

A: Given: Initial Volume V1 = 0.317 L Initial Pressure P1 = 944 torr = 1.242 atm Initial Temperature T1…

Q: A 1.00-L gas sample at 100.°C and 500. torr contains 47.0% helium and 53.0% xenon by mass. What are…

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Q: A mixture of gases contains 313 torr N2, 275 torr O2, and 286 torr Ar. What is the total pressure of…

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Q: A gas‑filled weather balloon has a volume of 59.0 L59.0 L at ground level, where the pressure is 759…

A: Use the below formula to find the volume at higher altitude. P1V1 / T1 = P2V2 / T2, Where, P and V…

Q: Three gases (8.00 g of methane, CH4, 18.0 g of ethane, C2H6, and an unknown amount of propane, C3H8)…

A: Three gases (8.00 g of methane, CH4, 18.0 g of ethane, C2H6, and an unknown amount of propane, C3H8)…

Q: A sealed container contains 4.0 mols of O2 (g), 6.0 mols of NH3(g) and 8.0 mols of Ne(g). The total…

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Q: A balloon is filled to a volume of 12.9L at a temperature of 27.1ºC. If the pressure in the balloon…

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Q: A sample of He(g) has a volume of 6.50 L at a pressure of 845 mm Hg and a temperature of 298 K. What…

A: Given that  Before :  Volume (V1) = 6.50 L Pressure (P1) = 845 mm Hg Temperature (T1) = 298 K After…

Q: A steel can with a volume equal to 1.35 L is filled with argon at 22 degrees C.  The can is then…

A: Given : Initial temperature of gas = 22 oC Initial pressure of gas = 765 torr And final pressure of…

Q: 9.05 L9.05 L container holds a mixture of two gases at 41 °C.41 °C. The partial pressures of gas A…

A: Volume of container =9.05 L Temperature (T) = 41°C = 41 + 273 = 314 K  Partial pressure of gas A =…

Q: A mixture of xenon and krypton gases, in a 7.82 L flask at 52 °C, contains 23.9 grams of xenon and…

A: Calculating number of moles of each gas in the mixture: number of molesn=mass of gasMolar mass of…

Q: A 1.25 L sample of a gas exerts a pressure of 829 torr at 10°C. What pressure (in atm) will be…

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Q: A sample of air was compressed to a volume of 16.0 L. The temperature was 300.0 K, and the pressure…

A: Number of moles in the sample can be calculated using the Ideal gas equation :…

Q: A 280 mL flask contains pure helium at a pressure of 747 torr. A second 470 mL flask contains pure…

A: Given data, Volume of pure helium = 280 mL Pressure of pure helium = 747 torr Volume of pure argon =…

Q: When methane is burned in oxygen, carbon dioxide and water are formed. When 8.00 L of methane at 125…

A: The chemical equation for combustion of methane is: CH4(g)+2O2(g)→CO2(g)+2H2O(g)    -------(1)

Q: molecule of helium effuses with a RMS speed of 1579 m/s. At the same temperature, an unknown gas…

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Q: A container containing 5.00 L of a gas is collected at 100 K and then allowed to expand to 20.0 L.…

A: We are given the initial volume and initial temperature (in Kelvins, so no need to convert from…

Q: At 528 torr and 21.0 oC, a gas has a volume of 224 mL. The gas conditions change to a volume of 778…

A:

Q: A 7.80 L7.80 L container holds a mixture of two gases at 13 °C.13 °C. The partial pressures of gas A…

A: 1) Calculate the partial pressure of gas C using ideal gas equation:

Q: A 8.90 L8.90 L container holds a mixture of two gases at 13 °C.13 °C. The partial pressures of gas A…

A: Using Daltons law and ideal gas equation we have solved this problem.

Q: A mixture of carbon dioxide and argon gases, in a 5.49L flask at 10 degrees Celsius, contains 1.89…

A: We use the Ideal Gas Laws to find the pressure of CO2 gas and total pressure As per IDEAL GAS LAWS…

Q: When gaseous F2 and solid I2 are heated to high temperatures, the I2 sublimes and gaseous iodine…

A: Given   The pressure of fluorine gas is 350 torr. The mass of solid iodine is 2.50 g. The volume of…

Q: A sample of hydrogen gas occupies a volume of 9.15L at 55.0 degrees Celsius and 378 torr. If the…

A: Given that: volume of gas, V1 =  9.15 L temperature, T1 = 55.0 oC = 55.0 + 273= 328 K pressure, P1…

Q: A mixture of xenon and argon gases, in a 5.91 L flask at 13 °C, contains 43.3 grams of xenon and…

A: Given : 43.3 grams of xenon3.83 grams of argonVolume  = 5.91 LTemperature is at 13 °C = 286.15KTo…

Q: What was the final pressure (in torr)

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Q: The gas in a 0.317 L cylinder of a diesel engine exerts a pressure of 944 Torr at 57.0 Celcius. The…

A: Given: The initial volume of the gas (V1) = 0.317 L The initial pressure of the gas (P1) = 944 torr…

Q: At 528 torr and 21.0 oC, gas has a volume of 224 mL. The gas conditions change to a volume of 778 mL…

A: The new temperature can be calculated by using combined gas law.

Q: A fixed quantity of gas at 21 degrees celsius exhibits a pressure of 757 torr and occupies a volume…

A: We will solve this question using charles law.

Q: cylindrical container with a movable piston initially holds 1.5 moles of gas at a pressure of 4.0…

A:

Q: A sample of krypton gas occupies a volume of 6.80 L at 65.0°C and 390. torr. If the volume of the…

A: Given  Initial Pressure (P1)  =390 torr Initial Temperature (T1)  = 65 ℃…

Q: When methane is burned in oxygen, carbon dioxide and water are formed. When 8.00 L of methane at 125…

A: It is given that methane gas is burned in oxygen to release carbon dioxide and water, and the…

Q: mixture of neon and helium gases, in a 9.73L flask at 83 degrees Celsius, contains 9.53 grams of…

A: Given that  Mass of Ne = 9.53g  Mass of He = 0.735g  Volume = 9.73L

Q: Initially 4.00 L NO at 0.500 atm and 2.00 L O2 at 1.00 atm are in different bulbs separated by a…

A: partial pressure of NO2 is 0.333 atmExplanation:Given data:For NO: P=0.5 atm, V = 4LFor O2: P=1 atm,…

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.