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: A mixture of xenon and helium gases, in a 6.98 L flask at 22 °C, contains 20.2 grams of xenon and…

A: Generally in a mixture of gases two or more gases each of the constituent gas has its own partial…

Q: A sample of helium at 20 °C occupies a volume of 6.98 L at a pressure of 9.64 atm. What volume does…

A: To solve this problem, we can use Boyle's Law, which states that the pressure of a gas is inversely…

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: 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 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: 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: If a sample of oxygen gas occupies 4200 mL at 205.0 °C and 3.82 atm, what temperature in °C will it…

A: The expression that explains the relationship between temperature, pressure and volume is as…

Q: A mixture of hydrogen and helium gases, in a 5.17 L flask at 36 °C, contains 0.390 grams of hydrogen…

A: Given, Volume of the flask (V) = 5.17 L Temperature (T) = 36°C = (36 + 273.15) K = 309.15 K Mass of…

Q: A sample of xenon gas that occupies a volume of 27.3 L at a temperature of 0 °C and a pressure of 1…

A: Interpretation: A sample of xenon gas that occupies a volume of 27.3 L at a temperature of 0°C and a…

Q: If 3.47 g Ar are added to 4.74 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

A: The pressure exerted by Ar is, PV = nRTP = nRTV ......(1) No. of moles of Argon = 3.47g/(40gmol-1) =…

Q: If 3.75 g Ar are added to 4.26 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

A: Given mass of argon = 3.75 g Molar mass of argon = 39.95 g/mol Number of moles of argon (n) =…

Q: A 2.00 L balloon is filled with helium gas at 21 °C and 1.00 atm of pressure. As the balloon rises,…

A: The ideal gas equation is given by,

Q: A 275-mL flask contains pure helium at a pressure of 0.989 atm. A second flask with a volume of…

A: Given,  First flask, Volume of Helium ( He) gas = 275 mL.  Partial pressure = 0.989 atm.  Second…

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,…

A:

Q: Container A holds 737 mL737 mL of an ideal gas at 2.60 atm.2.60 atm. Container B holds 174 mL174 mL…

A: The total pressure is determined by using the following formula

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: What is the maximum number of balloons that can be inflated? Assume that the gas in the cylinder is…

A:

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: A gas sample containing 0.6838 moles is trapped in a chamber with a volume of 7.557 liters.  If the…

A: n = 0.6838 molV = 7.557 LT = 298.17 K

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…

A:

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: If 4.27 g Ar are added to 3.96 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

A: Temperature = 27.0 °C = 27.0 + 273.15 =300.15 K Volume = 2.00 L Pressure of He = 3.96 atm Mass of Ar…

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

A:

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

A:

Q: Another balloon is inflated to a volume of 1.250 L with dry hydrogen gas, at 28.0 °C. The balloon is…

A: Here, pressure is constant during the process.  Hence, Chales law is applicable

Q: If 4.16 g Ar are added to 4.92 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

A:

Q: A glass container was initially charged with 2.30 moles of a gas sample at 4.00 atm and 21.7 °C.…

A:

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: A mixture of krypton and methane gases is maintained in a 6.32 L flask at a pressure of 3.01 atm and…

A: Total number of moles present in the mixture can be calculated using Ideal gas equation as follows,

Q: H,C CH H;C CH3

A: Systemic name is known as IUPAC name.  IUPAC- International Union of Pure and Applied Chemistry A…

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: To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an…

A:

Q: A glass container was initially charged with 1.80 moles of a gas sample at 4.25 atm and 21.7 °C.…

A: Initial moles, n1 = 1.80 mole Initial pressure, P1 = 4.25 atm Initial temperature, T1 = 21.7 °C =…

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

A:

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

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.