Suppose you are given two 1-L flasks and told that one contains a gas of molar mass 30, the other a gas of molar mass 60, both at the same temperature. The pressure in flask A is X atm, and the mass of gas in the flask is 1.2 g. The pressure in flask B is 0.5X atm, and the mass of gas in the flask is 1.2 g. Which flask contains the gas of  molar mass 30, and which contains the gas of molar mass 60?

Q: What is the pressure (in atm) of 0.250 mole of nitrogen gas at 18C in a 7.50 x 10^3 mL container?

A: We have given that   Mole of N2 = 0.25 mole  Temperature (T) = 18 + 273.15 = 291.15 K  Volume (V) =…

Q: What mass of neon gas would be required to fill a 3.00-L flask to a pressure of 925 mm Hg at 26 °C?

A: Ideal Gas Law :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas n is the…

Q: The temp of an ideal gas in a 5 . 00 L container originally at 1 . 0 atm pressure and 2 5 C is…

A:

Q: What is the final pressure, in atm, of a system that has the volume increased from 3.29 L to 8.15 L…

A: Given that,

Q: Air contains nitrogen, oxygen, argon, and trace gases. If the partial pressure of nitrogen is 592 mm…

A: Given: Partial pressure of Nitrogen = 592 mm Hg Partial pressure of Oxygen = 160 mm Hg Partial…

Q: Three containers connected together, the 1st one contains He with a pressure of 0.75 atm and 1.0 L;…

A: The Given data

Q: As 1g of the radioactive element radium decays over 1 year, it produces 1.16 x 10^18 alpha particles…

A:

Q: An ideal gas originally at 0.85 atm and 62°C was allowed to expand until its final volume, pressure,…

A: Given,Initial pressure, P1 = 0.85 atmInitial pressure, T1 = 62 oC = (62 + 273.15) K = 335.15…

Q: Oxygen gas can be prepared by heating potassium chlorate according to the following equation:…

A: Vapor pressure of water = 23.8 mm Hg Pressure of wet gas = 757 mm Hg Temperature = 25 °C = 25 + 273…

Q: Two bulbs of different volumes are separated by a valve. The valve between the 2.00 L bulb, in which…

A: Given, two bulbs of different volumes are separated by a valve,volume of gas of bulb 1st V1 =2.00…

Q: A fuel cylinder for a camping stove contains 8.8 oz butane (C4H10), which produces 105 L of butane…

A: When the combustion of the species butane in the sight of the oxygen then the species carbon dioxide…

Q: 5. If 2.0 moles of each gas are taken and kept under the same conditions of temperature and…

A: At STP same moles of gas occupies  same volume .

Q: For the given reaction, what volume of O, would be required to react with 6.4 L of CO, measured at…

A: PV = nRT  When temperature and pressure is constant  V directly proportional to moles…

Q: 1.) A gas originally at 27oC and 1.0 atm pressure in a 3.3 L flask is cooled at constant pressure…

A: For a definite amount of gas, at constant pressure, the volume of the gas increases with an increase…

Q: A person accidentally swallows a drop of liquid oxygen, O2(l), which has a density of 1.149 g/mL.…

A: To calculate the volume of oxygen gas in the stomach, first of all, we calculate the mass of the…

Q: A gaseous compound has a density of 1.12 g/L at 23.3 °C and 1.11 atm. What is the molar mass of the…

A:

Q: A gas mixture of Xe, Ne, and Ar has a total pressure of 21.2 atm. What is the mole fraction of Xe if…

A: Given, Ptotal = 21.2 atm              PNe   = 12.1 atm                PAr  = 5.40 atm total partial…

Q: A 33.0-L cylinder contains 324 g O2(g) at 20 ∘C. How many grams of O2(g) must be released to reduce…

A: According to ideal gas law, PV = nRT where P = pressure of gas V = volume n = moles R = gas constant…

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: If a 1.79-g sample of a gas occupies 1.0 L at STP, what is the molar mass of the gas at 125 C? 40.1…

A: Given data: The weight of the sample is 1.79 g. Temperature =(273+125)=398 K. Volume=1 L Pressure=1…

Q: 25.0 L of an ideal gas at 278 K and 4.11 atm are heated to 393 K with a new pressure of 7.00 atm.…

A:

Q: A vessel contains 66 g CO2 and 16 g O2 at a pressure of 10.0 atm. What is the partial pressure of…

A: Given,  A vessel which contains 66g Carbon dioxide and 16g of oxygen gas at a pressure of 10 atm.…

Q: A sealed container of gas contains nitrogen gas at 1.00x10³ kPa pressure and a temperature of 20°C.…

A: P1/T1=P2/T2  P1=1000kpa T1=20+273=293k T2=50+273=323k

Q: In the apparatus shown, the left bulb has a volume of 2 L and is filled with He to a pressure of ati…

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Q: For the given reaction, what volume of Br2 would be required to react with 6.4Lof NO, measured at…

A: The given reaction is

Q: What would be the total pressure of a container that is holding SO2(g) with a pressure of 1.385 atm,…

A: The sum of partial pressure is equal to the total pressure of the system in accord with Dalton's law…

Q: A mixture of helium, neon, and argon has a total pressure of 558 mm Hg. If the partial pressure of…

A: In a mixture of non-reacting gases, the total pressure exerted is equal to the sum of the partial…

Q: What is the total pressure in a canister

A: Given :-  Partial pressure of O2 = 804 mm Hg  Partial pressure of N2 = 220 mm Hg Partial pressure of…

Q: A sample of nitrogen gas has a pressure of 175.0 mm Hg in a 500.0 mL flask.  What is the pressure of…

A: According to ideal gas law, PV = nRT where P = pressure V = volume n = moles R = gas constant =…

Q: The lowest pressure achieved in the laboratory is about 1.0 x 10 ^-15 torr. how many molecules of…

A: Given : Pressure = 1.0 X 10-15 torr And volume of container = 1.0 L Assuming the temperature is same…

Q: 7.If container "A" is occupied by 1.0 mole of oxygen gas (molar mass 32.0 g/mol) while container "B"…

A: Using ideal gas equation,  PV=nRT  If T and P are constant then volume is directly proportional to…

Q: A mixture of argon and xenon gases, at a total pressure of 719 mm Hg, contains 8.29 grams of argon…

A:

Q: A sample of nitrogen gas has a volume of 167.0 mL at STP. What volume (in mL) does the gas occupy if…

A: 1) Given that: Volume of nitrogen (V1) = 167.0 mL = 0.167 L at STP that is Temperature (T1) = 273 K…

Q: Oxygen gas can be prepared by heating potassium chlorate according to the following…

A:

Q: For the given reaction, what volume of Br2 would be required to react with 5.0 L of NO, measured at…

A:

Q: The stopcock connecting a 1.00 L bulb containing carbon dioxide gas at a pressure of 522 mm Hg, and…

A: PCO2 is 522 mm Hg PCH4 is 662 mm Hg Pfinal after mixing =?

Q: If a sample of Argon gas occupies 2.50 L at 100.0 °C and 5.00 atm, what volume will it occupy at 0.0…

A: The volume can be calculated as follows: P1V1T1  = P2V2T25.00atm×2.50L373K  = 1.00atm×V2273KV2=9.1 L

Q: If flask A contains one half the moles of ideal gas that flask B contains, and they are both at 1.00…

A: Given is, Flask A has one half of the mole as  flask B

Q: True or False? If the statement is true, write true. If it is false, write false, and change the…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: An ideal gas originally at 0.85 atm and 62°C was allowed to expand until its final volume, pressure,…

A: P1V1/T1 = P2V2/T2 V1 = P2V2T1/P1T2

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

A: Answer: When hydrogen gas is collected over HCl, solution it would also be containing water vapor in…

Q: What is the volume in liters of hydrogen gas that would be produced by the reaction of 40.6 g of Al…

A: Given :-  2 Al (s) + 6 HCl (aq) → 2 AlCl₃ (aq) + 3 H₂ (g)  Mass of Al = 40.6 g  To be calculated :-…

Q: If the sample of helium gas has a volume of 6.4 L at a pressure of 0.70 atm, what is the new volume…

A: Given data Initial pressure of Helium : P1= 0.70 atm Initial Volume of Helium : V1= 6.4 L New…

Q: A 1.25 g sample of an unknown gas at 47 ∘C and 1.00 atm is stored in a 2.55 L flask. What is the…

A:

Q: A substance containing only carbon and hydrogen is analyzed and found to contain 85.7% carbon by…

A: Density of compound at STP = 1.87 g/Li.e. 1 L of compound weighs 1.87 g1 mol of compound at STP =…

Q: What mass (in grams) of CO2 gas is contained in a 1.50 L flask of carbon dioxide at a pressure of…

A:

Q: At constant volume, the temperature of a sample of sulfur dioxide gas is decreased from 97 o C to 27…

A: Given information: Initial temperature (T1) = 97 ℃ Final temperature (T2) = 27 ℃ Final pressure (P2)…

Q: What is the pressure of a 8.0 g sample of nitrogen gas at 25 degress celcius in a closed 500 mL…

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Q: 8.114 A gas mixture with a total pressure of 4.6 atm is used in a hospital. If the mixture contains…

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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.