Helium is kept in a pressurized cylinder with a volume of 10.0 L and a pressure of 5.00 atm. At 250 K, how many moles of helium does the cylinder hold?

Q: If 0.500 mol of helium gas occupies 5.00 L at 25 °C, what is the pressure in atmospheres?

A: Given details, n = 0.500 mol V = 5.00 L T = 25 °C = 298 K R = 0.08205 L.atm/mol.K To calculate the…

Q: In a 10.00 L steel container, and at a temperature of 25.0oC, we have 76.0 g of O2(g) and 63.9 g of…

A: Given that:Volume of the container, V = 10.00 LTemperature, T = 25.0oC = 298.15 KThe container…

Q: Most mixtures of hydrogen gas with oxygen gas are explosive.  However, a mixture that contains less…

A: First we are calculate presure of oxygen

Q: A flexible container at an initial volume of 6.13 L6.13 L contains 6.51 mol6.51 mol of gas. More gas…

A: Given that :  Initial volume (V1) = 6.13 L Initial moles(n1) = 6.51 mol Final volume (V2) = 18.5L…

Q: 5.6 g of solid CO2 is put in an empty, sealed 4 L container at a temperature of 300 K. When all of…

A: Given: Mass of CO2 = 5.6 g. Volume of container = 4 L  Temperature = 300 K Moles of CO2 = MassMolar…

Q: A cylinder contains 1.45 atm of oxygen and 0.94 atm of argon. Nitrogen gas is added to the cylinder…

A: Given information: Partial pressure of Oxygen (PO2) = 1.45 atm Partial pressure of Argon (PAr) =…

Q: A mixture of hydrogen and methane gases, in a 8.49 L flask at 19 °C, contains 0.527 grams of…

A: Partial pressure of methane = Mole fraction × Total pressure.

Q: 4. 45.0 L of an ideal gas at 288 K and 3.50 atm are heated to 373 K with a new pressure of 9.00 atm.…

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Q: A mixture of hydrogen and nitrogen gases, in a 9.64L flask at 28 degrees Celsius, contains .679 g of…

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Q: A steel cylinder of compressed argon with a volume of 0.400 L was filled to a pressure of 145 atm at…

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Q: A gaseous mixture of O2 and N2 contains 36 % nitrogen by mass. What is the partial pressure of…

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Q: A sample of gas at 1009.8 mmHg, occupying a volume of 12.49 L, and at a temperature of 26.20 °C is…

A: For the phase change of the ideal gas the temperature, pressure, and volume of the initial state and…

Q: The volume of ammonia gas at 1.09 atm of pressure is gradually decreased from 71.8 mL to 34.9 mL.…

A:

Q: What is the total pressure in atmospheres of a gas that contains 1.0 g of H 2 and 8.0g of Ar in a…

A: Moles of H2 gas = mass of H2 molar mass of H2  = 12 = 0.5 mol  Moles of Ar gas = mass of Ar molar…

Q: If a gaseous mixture is made of 2.33 g of He and 2.82 g of Ne in an evacuated 1.25 L container at…

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Q: In a 10.00 L steel container, and at a temperature of 25.0°C, we have 76.0 g of O2(g) and 63.9 g of…

A: Given, The volume of the container, V = 10.00 LTemperature, T = 25.0oC = 298.15 KThe container…

Q: 25.0 L of an ideal gas at 278 K and 4.11 atm are heated to 393 K with a new pressure of 7.00 atm.…

A:

Q: A gas in a balloon with a volume of 0.30 L at 150 °C is heated until its volume is 0.55 L. What is…

A: V1/T1=V2/T2  (T in kelvin) 150 degree celcius = 150 +273 =423 kelvin .3L/423k  =.55L /T2…

Q: A sealed flask contains 3.1 L of a gas at 2.4 atm and 22.7 °C. If the density of the gas is 9.7 g/L,…

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Q: A flashbulb of volume 2.20 mL contains O2(g) at a pressure of 2.30 atm and a temperature of 23.0 °C.…

A: Ideal gas equation : can be derived by combining the following laws.Boyle's law  V α 1P ( Constant T…

Q: Container A holds 772 mL of an ideal gas at 2.80 atm.Container B holds 139 mL of a different ideal…

A: Given, ideal gases as follows,volume of gas in container A =772 mL =0.772 Lat pressure =2.80…

Q: At 750 K, a 450 mL container of Xe at 2.7 atm is connected by a valve to a 250 mL container of H2 at…

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Q: What volume will 9.60 moles of sulfur hexafluoride (SF6) gas occupy if the temperature and pressure…

A: If P is the pressure of the gas, V is the volume of the gas, T is the temperature of the gas in…

Q: A mixture of helium and methane gases, at a total pressure of 698 mm Hg, contains 0.480 grams of…

A: Partial pressure of gas is defined as the contribution of that gas towards total pressure of the…

Q: A sample of gas contains 4.19 moles at 37.8 °C in a volume of 3.61 L. If 2.67 moles of gas are…

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Q: If some neon gas at 121,000 Pa were allowed to expand from 37 mL to 60 mL without changing the…

A: From the Boyles gas law, we know,     (At constant temperature)

Q: Container A holds 782 mL of an ideal gas at 2.70 atm.Container B holds 179 mL of a different ideal…

A: Resulting Pressure after Mixing can be calculated by the expression used in step-2   Pnet• =…

Q: A gas occupying a volume of 640.0 mL at a pressure of 0.834 atm is allowed to expand at constant…

A: The details solution for this is provided below in attach image.

Q: What mass of helium gas is needed to pressurize a 92.0 L tank to 209 atm at 18 °C? What mass of…

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Q: Container A holds 712 mL712 mL of an ideal gas at 2.10 atm.2.10 atm. Container B holds 114 mL114 mL…

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Q: A sample of gas occupies 40.0 liters at 32 °C when the pressure is 0.750 atm.  What temperature in…

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Q: 45.0 L of an ideal gas at 288 K and 3.50 atm are heated to 373 K with a new pressure of 4.25 atm.…

A: Given:45.0 L of an ideal gas at 288 K and 3.50 atm are heated to 373 K with a new pressure of 4.25…

Q: What pressure would be required to contain 100.0 g of SO2 gas in a 25.0 L container at a temperature…

A: Ideal Gas Law :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas n is the…

Q: If a gas occupies a volume of 0.550 L at 25°C, at what temperature, in °C, will it occupy a volume…

A: In this question, we want to determine the temperature of gas in °C when volume Increases from…

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: At what temperature (in Celsius) does 5.5 g of helium occupy a volume of 5.66 L at a pressure of…

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Q: A sample of gas at 9.18.5 mmHg occupying a volume of 13,02 L is transferred to a larger container of…

A: Given : Initial Pressure (P1) = 9.185mmHg 1 mmHg = 0.133322KPa Therefore, 9.185mmHg = 1.2245661KPa…

Q: If 1.52 g Ar are added to 3.41 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

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Q: A sample of an ideal gas with an initial volume of 18.0 L at a pressure of 679 mm Hg is compressed…

A: The ideal gas equation is given by,                                                  Where, P is…

Q: The molar volume for oxygen gas at a pressure of 0.684 atm and a temperature of 31°C is 36.5 L/mol.…

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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.