You have oxygen gas in a balloon. At room temperature, 25°C, the balloon has a volume of 9 L. You put the balloon in the freezer that is at O°C. Calculate the final volume of the balloon. You can assume that at all times; the balloon is at atmospheric pressure.

Q: A balloon is filled with helium gas (see an illustration below). Indicate whether the volume of the…

A: A balloon is filled with helium gas (see an illustration below). Indicate whether the volume of the…

Q: A 1.00-L helium, neon and argon mixture has a total pressure of 949.3 mmHg at 23.9 °C. If the…

A: Partial pressure of argon=949.3- 272.5 -202.6 = 474.2 mmHg

Q: An ideal gas in a sealed container has an initial volume of 2.65 L. At constant pressure, it is…

A: Charles' law states that the volume of a fixed amount of gas is directly proportional to the…

Q: A sample of an ideal gas at 1.00 atm and a volume of 1.91 L was placed in a weighted balloon and…

A: We have given that initial Pressure (P1) = 1 atm Volume (V1) = 1.91 L And after dropping into the…

Q: A gas mixture with a total pressure of 755 mmHg contains each of the following gases at the…

A: According to Daltons’ law of partial pressure- ‘total pressure of the mixture of gases is the sum of…

Q: A student is asked to model gas pressure using two walls and a ball connected to a string, as shown.…

A: This question belongs to the kinetic theory of gases. The walls in the structure represent the walls…

Q: 14)a) A sample of neon gas occupies a volume of 50.00L at 27.00C and 10.0 atm. How many moles of…

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Q: A sample of an ideal gas at 1.00 atm1.00 atm and a volume of 1.53 L1.53 L was placed in a weighted…

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Q: 132.0 g of chlorine gas (Cl2) and 24.0 g of helium (He) are mixed in a container with a total…

A: Given,  Mass of. Cl2 = 132 g Molar mass of Cl2 = 71 g/mol Moles = mass/MM     = 132/71   = 1.86 mol…

Q: A 280-mL flask contains pure helium at a pressure of 748 torr. A second flask with a volume of 460…

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Q: The hydrogen gas formed in a chemical reaction is collected over water at 30.0 °C at a total…

A: Given, Temperature, T = 30°C = (273.15 + 30) K = 303.15 K Total pressure, Ptotal = 734 mmHg Volume…

Q: Partial pressures The scene below depicts a mixture of four gases. (1) Which gas has the highest…

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Q: For many purposes we can treat nitrogen (N₂) as an ideal gas at temperatures above its boiling point…

A: The Ideal Gas equation is given by,PV = nRTwhere,P= Pressure in atmV = Volume in LT = Temperature in…

Q: A sample of nitrogen gas occupies a volume of 9.07 L at 41.0°C and 1.27 atm. If it is desired to…

A: According to the ideal gas equation PV= nRTWhere P= pressure of the gas V= volume of the gas n= no…

Q: A piece of magnesium reacts with an aqueous solution of HCl to produce H2 gas. The hydrogen gas is…

A: The ideal gas equation is shown below: PV = nRT Where; P = pressure of the gas V= volume of the gas…

Q: A volume of 0.70 L of air at 37 ° C is expelled from the lungs into cold surroundings at  4.9 ° C.…

A: Given V1 = 0.7 L T1 = 37°C = 37+273 = 310°K V2 = T2 = 4.9°C = 273+4.9 = 277.9°K

Q: A 15.0 L15.0 L helium tank is pressurized to 27.0 atm.27.0 atm. When connected to this tank, a…

A: This problem can be solved using Boyle's law .  Which is given below as  P1 V1 = P2 V2  Where , P1…

Q: A 1.0-L container of liquid nitrogen is kept in a closet measuring 1.0 m by 1.0 m by 2.0 m. Assuming…

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Q: A sample of krypton gas occupies a volume of 6.60 L at 52.0°C and 1.16 atm. If it is desired to…

A: The ideal gas equation can be expressed as ,                             PV = nRT Where, P is the…

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: A sample of oxygen gas was collected via water displacement. Since the oxygen was collected via…

A: The total pressure is the sum of partial pressure of all the gases present in a system in accordance…

Q: According to the following reaction: MnOz+ 4 HCl MnClz+ Clz+ 2H,O If 12.2 g of MnO2 were reacted…

A: Given information: Mass of MnO2 = 12.2 g Volume of HCl = 70.0 mL Molarity of HCl = 2.50 M

Q: Hydrogen gas, oxygen gas, and water vapor are collected in eudiometer. The eudiometer contains of…

A: moles of h2=1.0218X10-3 mol XH2= mol gas/total mol XH2=0.2325

Q: An ideal gas in a sealed container has an initial volume of 2.40 L. At constant pressure, it is…

A: Given, Initial volume, V1= 2.40 L Initial temperature, T1=? Final volume , V2=1.75 L Final…

Q: A sample of hydrogen gas at a pressure of 1.09 atm and a temperature of 29.6 °C, occupies a volume…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: A gas mixture with a total pressure of 765 mmHg contains each of the following gases at the…

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Q: Olympic cyclists fill their tires with helium to make them lighter. Calculate the mass of air in an…

A: The mass of air (mair), having molar mass = 28.8 g/mol, in an air-filled tire is; 125 psi=8.51…

Q: pressure had increased to 15.0 atm,15.0 atm

A: The  final volume of balloon at pressure 15.0 atm. will be 0.0713 L

Q: A sample of oxygen gas was collected via water displacement. Since the oxygen was collected via…

A: Here we are required to find the partial pressure of oxygen.

Q: A 1.00-L helium, neon and argon mixture has a total pressure of 816.2 mmHg at 22.1 °C. If the…

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.