Three 5-L flasks, fixed with pressure gauges and small valves, each contain 4 g of gas at 273 K. Flask A contains H2, flask B contains He, and flask C contains CH4. Rank the flask contents in terms of (a) pressure, (b) average molecular kinetic energy, (c) diffusion rate after the valve is opened, (d) total kinetic energy of the molecules, (e) density, and (f) collision frequency.

Q: A gas of unknown molecular mass was allowed to effuse through a small opening under…

A: According to Graham's law of effusion: The rate of effusion is also inversely proportional to the…

Q: The alkali metals [Group 1A(1)] react with the halogens [Group 7A(17)] to form ionic metal halides.…

A: Given details, The balanced chemical equation, Cl2(g) + 2K(s) → 2KCl(s) Pressure = 0.950 atm volume…

Q: A sample of gas is manipulated so that its temperature (in K) triples and its volume is reduced to…

A: An ideal gas will follow the ideal gas equation. The ideal gas equation is given by PV=nRT, where P,…

Q: The total pressure of a mixture of gas is 800 torr. What are the partial pressures of the component…

A: Number of moles can be calculated as follows: No. of moles of CO2 = massatomic mass = 80g44…

Q: Chlorofluorocarbons (CFC's) are gases that were formerly widely used in aerosols and refrigerators…

A: Given: Mass of CFC = 2.50 g. Temperature = 22 oC Pressure = 1.02 atm. And volume of flask = 500 mL =…

Q: Chlorofluorocarbons (CFC's) are gases that were formerly widely used in acrosols and refrigerators…

A: Given: Mass of CFC = 2.50 g. Temperature = 22 oC Pressure = 1.02 atm. And volume of flask = 500 mL =…

Q: What volume in liters does 0.135 g of O2 occupy at 23.0 Celsius and 732 torr? Assume the standard…

A: The detailed solution is given in the following steps

Q: The percent composition of air by volume is 78.08% N2, 20.95% O2, 0.93% Ar, and 0.036% CO2. What are…

A: According to Dalton's law, the partial pressure of a particular gas in a mixture can be used to…

Q: How many moles of helium gas will it take to fill a balloon with a volume of 1.75 L when the…

A:

Q: Consider separate 1.0 liter gaseous samples of N2, Ar, CH4, and CO2 all at STP. (a) Rank the gases…

A:

Q: Q7. A gas mixture that has the following composition in percent by volume: 10.2% CO2, 21.0% CO,…

A: Let the total composition of the mixture be 100 mL. The volume of CO2, CO, H2, CH4 and N2 can now be…

Q: What volume (in liters, at 568 K and 3.39 atm) of chlorine gas is required to react with 4.74 g of…

A: To solve this problem, we first need to use stoichiometry to determine how much chlorine gas is…

Q: Gas Z was collected over water at 21°C on a day when atmospheric pressure was 757 torr. The volume…

A: The pressure in the collection tube is due to water vapor and the gas Z. Since, the total pressure…

Q: ate the partial pressure of each of (b)gases in the total pressure of the mixture

A: Using ideal gas equation, PV = nRT Where, P = pressure             V = volume 10.00 L             n…

Q: A sample of nitrogen gas has a volume of 478 cm³ and a pressure of 104.1 kPa. What volume would the…

A:

Q: A 250MI stoppered The pressure of the torr. What would the the flask was transfe

A:

Q: At a certain temperature and pressure, the rate of effusion of N2 gas is 30.0 mL/minute. What is the…

A: According to Graham's law , the effusion rate of any gas is inversely proportional to the square…

Q: A mixture of neon and hydrogen gases contains neon at a partial pressure of 231 mm Hg and hydrogen…

A:

Q: A 1.00 L flask is filled with 2.00 mol Ar, 2.00 mol H2 and 4.00 mol Kr. Which of the following…

A: Given data, Volume of flask = 1.0L Moles of H2 = 2.00 moles Moles of Ar = 2.00 moles Moles of Kr =…

Q: A 2.01 L flask containing 2.31 g of helium gas (molar mass = 4.003 g/mol) is separated by a stopcock…

A: Solution:      Number of moles in a solution is given by the ratio of number of moles of substance…

Q: The gaseous composition of exhaled breath of air by number analysis of the number of moles is 74.8%…

A: Answer:- This question is answered by using the simple concept of Daltons's partial pressure law…

Q: A mixture of argon and helium gases contains argon at a partial pressure of 464 mm Hg and helium at…

A: Dalton’s Law of Partial Pressures states that the total pressure exerted by the mixture of…

Q: Three 8−L flasks, fixed with pressure gauges and small valves, each contain 6 g of gas at 266 K.…

A: Interpretation: Three 8-L flasks, fixed with pressure gauges and smell valves, each contain 6 g of…

Q: What volume (in liters, at 683 K and 2.24 atm) of chlorine gas is required to react with 3.59 g of…

A:

Q: (b) A piston at 122.0°C contains a gas that occupies a volume of 2.5 L. To what temperature would…

A: A piston at 122.0°C contains a gas that occupies a volume of 2.5 L. The temperature at that would…

Q: An unknown perfect gas was detected in the breath of a ferret. It appears to be made entirely of…

A:

Q: A mixture of oxygen and neon gases, at a total pressure of 668 mm Hg, contains 3.00 grams of oxygen…

A: 1- First we will determine the moles of O2 and Ne :  moles of O2 ( n1 ) = [ Mass / Molar mass ]…

Q: A quantity of O2 weighing 15.58 g and excess solid C are sealed in a container of volume 5.25 L The…

A: First, we need to calculate the number of moles of O2. The molar mass of O2 is 32.00 g/mol. So, the…

Q: An 89.3 mL sample of wet O2(g) is collected over water at 21.3°C at a barometric pressure of 756…

A: Given :-  Volume of wet oxygen =  VwO2 = 89.3 mL  Total Pressure = Ptotal = PdO2 = 756 mmHg  Vapor…

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: The mass of an evacuated 255 mL flask is 143.187 g. The mass of the flask filled with 267 torr of an…

A:

Q: average molecular kinetic energy: (Choose one) Part 3 of 6 diffusion rate after valve is opened:…

A: 2)Average molecular kinetic energy: The temperature of a gas directly affects the average kinetic…

Q: If the total pressure of a mixture of gases was 760 mm Hg and its composition is 20% oxygen, 0.04%…

A:

Q: A sample of gas has a volume of 2.50 L at 916 kPa and 75.0 °C. What is the pressure (in atm) of the…

A: Given:  P1 = initial pressure of gas = 916 kPa V1 = initial volume of gas = 2.50 L T1 = initial…

Q: What is the partial pressure of neon that's 18% by volume in a gas mixture with a total pressure of…

A: Answer: According to Dalton's law of partial pressure, partial pressure of any gas in the gaseous…

Q: What volume (in liters, at 388 K and 5.19 atm) of chlorine gas is required to react with 6.54 g of…

A: According to the stoichiometry of the reaction, 2 moles of phosphorus react with five moles of…

Q: A binary mixture of gases A and B contained 0.515 g of A (100.0 g/mol) at a total pressure of 1825…

A: We know that, PV = nRT  Given, pressure P = 1825 torr =  Volume V = 362.2 ml = 0.3622 L Temperature…

Q: A sample of CO2 occupies a volume of 14.87 liters at 140.5 kPa. What pressure in kPa would the gas…

A:

Q: A sample of gas has a volume of 2.50 L at 781 kPa and 75.0 °C. What is the pressure (in atm) of the…

A: Given:P1 = 781 kPa = V1 = 2.50 LT1 = 75.0 oC = (75.0 + 273.15) K = 348.15 KV2 = 3.75 LT2 = 25.0 oC =…

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.