A mixture of argon and helium gases is maintained in a 9.63 L flask at a pressure of 2.57 atm and a temperature of 65 °C. If the gas mixture contains 20.5 grams of argon, the number of grams of helium in the mixture is g.

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Q: Fe(s) + H2SO(aq) → FeS0.(aq) + H2(g) The volume of the balloon was 4.8 x10° L. What mass of Fe was…

A: Equation can be written as: Fe(s)+H2SO4→FeSO4(aq)+H2(g) Molar mass of Fe = 56 g/mol H2 = Molar mass…

Q: If 5.0 moles of O2 and 3.0 moles of N2 are placed in a 30.0 L tank at a temperature of 25° C, what…

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Q: A sample of xenon gas occupies a volume of 6.95L at 431K. If the pressure remains constant, at what…

A: Initial volume, V1 = 6.95 L Initial temperature, T1 = 431 K Final volume, V2 = 3.77 L Final…

Q: At what altitude does the atmospheric pressure drop from 760 Torr to 560 Torr at 25°C? (Molecular…

A: Given, initial pressure =760 torrand final pressure =560 torrtemperature =25 °Cmolecular weight of…

Q: What final pressure must be applied to a sample of gas having a volume of 200. mL at 20.0°C and 750.…

A: Initial volume = 200 ml  Initial temperature = 20°C   Initial pressure = 750 torr Final volume = 600…

Q: A 212 L sample of a gas exerts a pressure of 42.4 kPa. If its volume is expanded to 319 L, what will…

A: The question is based on the concept of Boyle's law. it states that for a given amount of gas , at…

Q: A mixture of xenon and nitrogen gases at a total pressure of 927 mm Hg contains xenon at a partial…

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Q: What is the mass of Chlorine gas present in 17.0L at a pressures of 98.5kPa and a temperature of…

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Q: A gas mixture composed of helium and argon has a density of 0.670 g/L at a 755 mmHg and 298 K. What…

A: Any unknown variable like volume (V), moles (n), or pressure (P) get evaluated through the…

Q: When fully inflated, a hot-air balloon has a volume of 1.6 X 105 L at an average temperature of 375…

A: Given that volume of hot-air balloon, y =1.6×105 L Pressure, P = 0.975 atm Temperature, T = 375 K…

Q: What volume is occupied by 12.5 g of argon gas at a pressure of 1.05 atm and a temperature of 322 K?…

A: Given: volume of Ar = 12.5 g pressure of Ar = 1.05 atm temperature of Ar = 322 K volume of He =…

Q: If 1.36 g of a gas occupies a volume of 1.00 L at 0.984 atm and 30 C, what is the molar mass in…

A: From ideal gas law, we know that  PV = nRT Where  P = pressure of the gas V = volume of gas n =…

Q: A 0.0665 g sample of aluminum metal reacts with hydrochloric acid to give 90.5 mL of hydrogen gas at…

A: Stoichiometry relates the amount of reacting with the formed species. As per this concept, the…

Q: If 19.91 g of CO2 is enclosed in a 1.98 L container at 60.5 °C, what pressure is it exerting on the…

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Q: A barometer reading gives a pressure of 761 mmHg. What is this value in units of atm?

A: A barometer reading in mmHg scale which is to be converted into atm units.

Q: If 4.28 g Ar4.28 g Ar are added to 2.52 atm He2.52 atm He in a 2.00 L cylinder at 27.0 °C, what is…

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Q: We find that a mass of 0.896 g of a gaseous compound, containing only nitrogen and oxygen, occupy a…

A: By help of Ideal gas equation, we can calculate the molar mass of given compound , we use Following…

Q: If the temperature of a gas confined to such a cylinder is raised from 221°C to 635°C, what is the…

A: Since the cylinder is confined means no change in moles of gas And pressure is also given constant…

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

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Q: If the temperature of a gas confined to such a cylinder is raised from 251°C to 536°C, what is the…

A: Gas is considered to be the third state of matter. The behaviour of gases can be well explained…

Q: Oxygen gas reacts with powdered aluminum according to the reaction:4 Al(s) + 3 O2(g) ------->2…

A: Given: Pressure= 782 mmHg= 782760atm=1.0289 atm Temperature= 25°C=25+273.15 K=298.15 K Mass of Al=…

Q: A 2.43 L volume of hydrogen measured at −150. °C is warmed to 100.°C. Calculate the volume (in L) of…

A: Given: Initial Volume V1 = 2.43 L Initial Temperature T1 = -150 oC= 123 K Final Temperature T2 = 100…

Q: A 334-mL cylinder for use in chemistry lectures contains 5.225 g of helium at 23 °C. How many grams…

A: Given,Mass = 5.225 gMolar mass of helium is = 4.0 g/molVolume = 0.334 LTemperature = 23 oC = 273.15…

Q: A mixture of oxygen and chlorine gases contains twice as much oxygen (by mass) as chlorine. Ifthe…

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Q: Calculate the density of hydrogen gas (in g/L) at 899 mmHg and 42.4 °C. ______ g/L

A: According to ideal gas law PV = nRT Where , P = pressure V = volume n = moles of gas R = gas…

Q: A chemical reaction occurring in a cylinder equipped with a moveable piston produces 0.641 mol of a…

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Q: You have 854 mL of chlorine trifluoride gas at 755 mmHg and 49°C. What is the mass (in g) of the…

A: According to ideal gas law's, ratio of product of Pressure and volume to the product of temperature…

Q: Calculate the density of Xenon gas at a pressure of 742 mmHg and a temperature of 450C. The molar…

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Q: To what temperature must a sample of nitrogen at 39.2oC and 0.511 atm be taken so that its pressure…

A: Applying formula P1/T1= P2/T2

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A: According to the reaction  N₂ (g) + 3 H₂ (g) → 2 NH₃ (g) we can say the 1 L of N2 will react with 3…

Q: The mass of 1.12 L gas at STP is found to be 6.23 g. What is the molar mass of gas Y ?

A: Given data is: Volume of gas = 1.12 L  Given mass = 6.23 g The procedure to finding the molar mass…

Q: If 0.275 moles of oxygen gas are held in a sealed 550 mL flask at a pressure of 800 mm, what is the…

A: Given, Moles of Oxygen gas (n) = 0.275 moles Note: 1000 mL= 1L Volume of a gas (V) = 550 mL = 0.550…

Q: A sample of 0.264 mol of nitrogen gas takes up 0.9861 L of space at 1.03 atm. At what temperature…

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Q: A 14.36 mol sample of argon gas at 95.98 °C occupies 24.00 L. What is the pressure in kPa? Provide…

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Q: If a sample of Argon gas occupies 2.50 L at 100.0 °C and 5.00 atm, what volume will it occupy at 0.0…

A: Ideal gases are those gases which follow ideal gas equation. The relation between pressure, volume,…

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A: At STP the volume of one mole of gas is 22.4 L. Then, at STP, 22.4L of N2 contains 1 mole of N2 .…

Q: The molecular weight of a gas that has a density of 6.75 g/L at STP is __________ g/mol.

A: At stp pressure is one atm

Q: A sample of gas of mass 3.82g occupies a volume of 539 mL at 27 ⁰ C and 1.0 atm pressure. What is…

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Q: A 0.0733 L balloon contains 0.584 grams of iodine gas, I2, at a pressure of 93.6 kPa. What is the…

A: Given that,  Volume of balloon V = 0.0733 L Weight of iodine gas in balloon w = 0.584 g Pressure of…

Q: A mixture of neon and argon gases, at a total pressure of 882 mm Hg, contains 3.46 grams of neon and…

A: Given that, total pressure  (Ptotal) = 882 mmHg Mass of neon = 3.46 g Mass of argon = 2.27 g Partial…

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A: N₂ (g) + 3 H₂ (g) → 2 NH₃ (g)  According to the above reaction 1 mole of Nitrogen will react with 3…

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

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Q: At 24 °C and 745 mmHg, the density of an unknown gas is determined to be 7.76 g/L. What is the molar…

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Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A: We have to calculate the volume of Reactant left.

Q: A 3.85 g sample of an unknown gas at 73 °C and 1.05 atm is stored in a 1.35 L flask. What is the…

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Q: A 200 L sample of argon was collected under a pressure of 1.00 atm. At what pressure would the…

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