A glass container weighs 50 gr when it is empty, 100 gr when it is filled with water, and 50.15 gr. when it is filled with an unknown gas at 740 mmHg and 25 oC. What is the molecular weight ( molar mass ) of unknown gas? Universal gas constant R = 0.08206 Latm/mol oK Density of water d water = 1 gr/ml a. 92 gr/ mol b.  58 gr/mol   c. 75 gr/ mol d. 43 gr/ mol

Q: 138. You have two rigid gas cylinders. Gas cylinder A has a volume of 48.2 L and contains N2(g) at…

A: Given:Volume of gas (VN2) = 48.2 L.Pressure of gas (PN2) = 8.35 atm.Temperature of gas (TN2) = 25℃ =…

Q: 9.96 grams of argon. What is the partial pressure of each gas in the mixture? mm Hg A mixture of…

A: Given information: Mass of helium = 0.546 g Mass of argon = 9.96 g Total pressure = 973 mmHg

Q: Calculate the total pressure (in atm to 2 sf) in a container with 616 torr N2, 104 torr O2, and 40.…

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Q: Three gases (8.00 g of methane, CH4, 18.0 g of ethane, C2H6, and an unknown amount of propane, C3H8)…

A: Three gases (8.00 g of methane, CH4, 18.0 g of ethane, C2H6, and an unknown amount of propane, C3H8)…

Q: If a gaseous mixture is made by combining 4.77 g Ar and 2.34 g Kr in an evacuated 2.50 L container…

A: Pi = Xi x P Where, Pi = partial pressure of gas i,             Xi = mole fraction of gas i…

Q: A glass container weighs 50 gr when it is empty, 100 gr when it is filled with water, and 50.15 gr.…

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Q: When dinitrogen pentoxide gas reacts with nitrogen dioxide gas, the products are nitrogen monoxide…

A: According to the ideal gas equation, PV=nRTP=PressureV=Volumen=number of molesR=gas…

Q: A gas mixture in a 3.900 L container at 305°C contains 1.20 g each of Ar, CO, and CH4. Find the…

A: We have given that Volume of gas mixture = 3.9 L Temperature of Gas mixture = 3050C = 578 K Mass of…

Q: the identity е

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Q: A mixture of methane and hydrogen gases, in a 8.02 L flask at 82 °C, contains 4.49 grams of methane…

A: Partial pressure :  If a flask is filled with more than one gas, each gas exerts pressure. The…

Q: A gas mixture in a 4.900 L container at 310°C contains 1.25 g each of Ar, CO, and CH4. Find the…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: A gas cylinder contains 1.40 mol He,1.40 mol He, 1.10 mol Ne,1.10 mol Ne, and 2.10 mol Ar.2.10 mol…

A: The gas cylinder contains helium, neon and argon.

Q: A sample of gas at 840.9 mmHg and occupying a volume of 13.84 L is transferred to a smaller…

A: Boyle's law It states that at a given temperature and composition pressure of any gas is inversely…

Q: An unknown gas at 25.1 ∘C25.1 ∘C and 1.10 atm1.10 atm has a molar mass of 44.10 g/mol.44.10 g/mol.…

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Q: 1. When a certain acid and a certain base are mixed together, a reaction occurs that produces a gas…

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Q: 9. Which of the soda containers below would be most likely to spew soda if you opened it? Coca-Cola…

A: We can estimate which of the soda container will spill by determining the Pressure.  The one with…

Q: A mixture of three noble gases (He, Ne, Ar) is confined to a 2.5 L container at 19 degrees celcius.…

A: Given: The volume of the container is 2.5 L and the temperature is 19°C. The pressure exerted by He,…

Q: STP (standard temperature and pressure) is used as a reference point for the molar volume of an…

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Q: A container holds 4 gases: O2, F2, CO2 and He. The partial pressure of 3 of the gases are as…

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Q: what is the new volume?

A: Given P1=589kPa=589*0.009869=5.812atm V1=15.9L T1= 2713.15+56.5=329.65K P2=1atm V2=? T2= 2713.15K

Q: A gas sample originally occupies 436mL at 24°C. When the volume is expanded to 612mL and the…

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Q: According to the ideal gas law, a 10.90 mol sample of methane gas in a 0.8267 L container at 495.1 K…

A: To solve this question, we need to calculate new pressure using van der waals equation and then take…

Q: Sulfur tetrafluoride gas is collected at  −4.0°C  in an evacuated flask with a measured volume of…

A: Applying ideal gas equation  PV = nRT where  P= pressure, V= volume, n= no. of moles R= gas…

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: If a gaseous mixture is made by combining 2.17 g Ar and 2.55 g Kr in an evacuated 2.50 L container…

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Q: A sample of gas in a balloon has an initial temperature of 27 ∘C and a volume of 1800 L . If the…

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Q: A dentist has a 15.00 L cylinder of "laughing gas", N2O, at 10.0 atm and 25 oC. What mass of gas is…

A: GivenVolume of gasv=15.00Lpressure(p)=10.0 atmTemperature(T)=25°C=273+25T=298uMass of gass=?

Q: A closed vessel of fixed volume contains 20.0 g of CO2(g) exerting a pressure of 2.25 atm. Some…

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Q: The air in a 6.00 LL tank has a pressure of 1.60 atmatm . What is the final pressure, in…

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Q: A 1.62-mol sample of methane gas is maintained in a 0.660-L container at 305K. Calculate the…

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Q: A 9.884 mol sample of krypton gas is maintained in a 0.8369 L container at 299.9 K. What is the…

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Q: A gas has a density of 2.55 g/L at 54 °C and P = 0.914 atm. What will be its density at 194 °C?…

A: P = pressure V = volume T = temperature n = moles of gas  m = mass of gas  M = molar mass of gas  d…

Q: When gaseous F2 and solid I2 are heated to high temperatures, the I2 sublimes and gaseous iodine…

A: Given   The pressure of fluorine gas is 350 torr. The mass of solid iodine is 2.50 g. The volume of…

Q: A mixture of gases is prepared from 125 gof O2 and 18.0 g of H2. After the reaction of O2 and H2 is…

A: Mass of O2 = 125 g Mass of H2 = 18 g

Q: A 44.0 L metal cylinder stores a sample of gas at 6 °C under 1.02 atm. The temperature of the…

A: The effect of pressure and temperature is measured by Boyle’s law and Charles's law respectively.…

Q: In a steel container of 20.00 L, we have 55.5 g of N₂2(g) (M=28.02 g/mol), 77.7 g of O₂(g) (M=32.00…

A: The total pressure in the container is the sum of partial pressures of N2, O2, and unknown gas.…

Q: You want to store 156 g of CO2 gas in a 17.5-L tank at room temperature (25 °C). Calculate the…

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Q: You want to store 137 g of CO₂ gas in a 15.3- L tank at room temperature (25 °C). Calculate the…

A: Given: The mass of CO2 = 137 g The volume of the tank = 15.3 L Temperature = 25 ∘C We have to…

Q: If a gaseous mixture is made by combining 1.29 g Ar and 2.46 g Kr in an evacuated 2.50 L container…

A: The total pressure of a mixture of two non reacting gases is given by  PtotalV = (n1+n2)RT  Ptotal =…

Q: What pressure is exerted by 8.178 g of CO2 gas in a 4.387 L container at 48.3 °C? Note the following…

A: Consider the given information is as follows; Determination of molar mass of is as follows;

Q: A gas cylinder contains 1.70 mol He, 1.75 mol Ne, and 1.65 mol Ar. If the total pressure in the…

A: The species partial pressure will be equivalent mathematical product of the total pressure and the…

Q: If a gaseous mixture is made by combining 4.66 g Ar and 4.71 g Kr in an evacuated 2.50 L container…

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Q: One of the cylinders of an automobile engine has a volume of 400.0 cm3. The engine takes in air at a…

A: Given :-  Initial pressure = 1.00 atm  Initial volume = 400.0 cm3  Initial temperature = 15.0°C…

Q: Assuming non-ideal behavior, a 2.0 mol sample of CO₂ in a 7.30 L container at 200.0 K has a pressure…

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Q: A gas mixture in a 3.700 L container at 460°C contains 1.20 g each of Ar, CO, and CH4. Find the…

A: Total volume of gas mixture = 3.7 L Temperature = 460◦C or 733.15 K Gas constant, R = 0.0821…

Q: ntainer holds 3 gases: oxygen, CO2, and He. The partial pressure of the 3 gases are 2.00atm,…

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.