Aballoon vendor at a street fair is using a tank of helium to fill her balloons. The tank has a volume of 186.0L and a pressure of 125.0 atm at 25.0 "C After a while she notices that the valve has not been closed properly. The pressure had dropped to 115.0 atm. (The tank is still at 25.0 "C)

Q: At 25.0° C, a 10.00 L vessel is filled with 5.25 moles of Gas A and 4.70 moles of Gas B. What is the…

A: Given:  Temperature of the system, T= 25.0°C = (25.0 + 273.15)K = 298.15 K  Volume of the vessel, V…

Q: A mixture of hydrogen and krypton gases, in a 6.79 L flask at 17 °C, contains 0.286 grams of…

A: According to the question, The mass of the hydrogen = 0.286 gramThe mass of the Krypton = 23.3…

Q: A sample of xenon gas at 297 K and 0.372 atm occupies a volume of 4.11 L. If the pressure of the gas…

A: Given, A sample of xenon gas at 297 K and 0.372 atm occupies a volume of 4.11 L. If the pressure of…

Q: A 9.58 L balloon under standard atmospheric pressure and temperature is taken on an airplane to a…

A:

Q: At 25.0° C, a 10.00 L vessel is filled with 5.25 moles of Gas A and 5.95 moles of Gas B. What is the…

A: Given, volume of vessel =10.00 Ltemperature =25°C =(25+273) K =298 Knumber of mole of gas A =5.25…

Q: [References] Use the References to access important values if needed for this question. A mixture of…

A: This problem will be solved by using Dalton's law of partial pressure .

Q: A weather balloon has a volume of 650 L when filled with helium at 9 ∘C at a pressure of 390 Torr.…

A: Given: Initial Volume V1 = 650 L Initial Pressure P1 = 390 torr = 0.513 atm Initial Temperature T1 =…

Q: 2.0 moles of  Ne gas are placed in a steel box and the pressure is measured. An identical box at the…

A: Answer :option b is the correct answer The pressure in the both box will be equal . We know  PV=nRT…

Q: A 7.60 L container holds a mixture of two gasses at 51 degrees celsius. The partial pressures of gas…

A: The ideal gas equation can be written as: Here, P = pressure, V = volume of the container that…

Q: A mixture of carbon dioxide and nitrogen gases, in a 8.55 L flask at 35 °C, contains 16.4 grams of…

A:

Q: g. h.

A: Given that,

Q: A flask contains 600 mL of chlorine gas at 560mm Hg. If the volume of chlorine gas inside the flask…

A:

Q: 2.2 L of He gas at 7.6 atm pressure and 25oC and 3.8L of Ne gas at 4.2 atm pressure and 25oC are…

A: Given, Volume of He gas = 2.2 L Pressure = 7.6 atm Temperature = 25◦c   Volume of Ne gas = 3.8 L…

Q: A 12.8-millilter sample of a gas is at 546K and has a pressure of 5.9atmospheres. If the temperature…

A:

Q: A 5.0-L sample of sulfur hexafluoride (SF6) is stored at a temperature of 250.0 K and a pressure of…

A:

Q: Assume that the pressures in container A and B are the same. Container Container A Volume 2.71 L ??…

A: The volume of the container B is 1.093 L

Q: A gas occupying a volume of 669.0 mL at a pressure of 0.852 atm is allowed to expand at constant…

A: From Boyles laws, P1V1= P2V2 V1 = initial volume = 669.0  mL P1 = initial pressure = 0.852 atm V2 =…

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.