he temperature of a sample of nitrogen gas at a fixed volume is changed, causing a change in pressure from 135.51 kpa to 454.01 kpa. If it’s new temperature is 166.38 K, what it’s original temperature in kelvins?

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Q: A mixture containing 0.538 mol helium, 0.315 mol neon and 0.103 mol argon is confined in a 7.00 L…

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Q: A gas cylinder contains 2.45 mol He, 1.85 mol Ne, and 2.15 mol Ar. If the total pressure in the…

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Q: Consider the apparatus shown below. The valve is closed. the left bulb contains nitrogen gas and the…

A: The solution of the given question is

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Q: A 3.00 L sample of NH3 gas at 100.0 kPa is cooled from 500.0 K to 300.0 K and its pressure is…

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A: 1. Given that : The initial volume of the gas = 3.45 L The initial temperature of the gas = 282 K…

Q: A gaseous mixture of O2 and N2 contains 38.8 %% nitrogen by mass. What is the partial pressure

A: Assume Total mixture = 100 g  Mass of N2 = 38.8 g  Moles of N2 = 38.8 g/ 28 g/mol  = 1.38mol Mass…

Q: A sample of a gas in a cylindrical chamber with a movable piston occupied a volume of 1.40 liters…

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Q: of total mass 80g. 14% of the total mass is nitrogen. The nitrogen is occupying a volume of 0.995…

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Q: Hydrogen gas can be generated from the reaction between aluminum metal and hydrochloric acid. 2Al(s)…

A: 2Al (s) + 6HCl (aq)→ 2AlCl3 (aq) + 3H2 (g)   Mass of Al = 3.0 g Volume of gass flask = V = 850 mL =…

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Q: At 535 mm Hg and 58.4 °C, a sample of carbon monoxide gas occupies a volume of 0.415 L. The gas is…

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Q: If 2.14 mol of nitrogen gas and 1.07 moles of oxgyen gas are combined into a 10.0 L container, what…

A: Recall ideal gas equation            PV=nRTWhere,Total pressure of gas is P           Volume of…

Q: gaseous mixture of O2O2 and N2N2 contains 38.8 %% nitrogen by mass. What is the partial pressure of…

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Q: A sample of nitrogen gas is placed into a container at 200 K. If the temperature of the container is…

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Q: If 3.97 Mol of an ideal gad has a pressure of 3.07 atm and a volume of 34.35 L, what is the…

A: For ideal gas PV= nRT p= pressure V=volume n= no. of moles R= gas constant T= temperature

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Q: For many purposes we can treat ammonia  NH3  as an ideal gas at temperatures above its boiling…

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Q: A sample of an ideal gas contains 0.836 moles. If the pressure of the gas is 624. mmHg and the…

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Q: The density of 1.00 mol of an unknown gas at a temperature of -76oC and a pressure of 2,387 torr is…

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A: According to ideal gas law PV = nRT where P = pressure in atm = P in torr / 760 = 740 / 760 = 0.974…

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.