a) A container of compressed helium has in it 15.0 L pressurized to about 2250 kPa at 24.5°C. How many moles of helium are in the container?   b) Determine the volume of oxygen gas required to completely combust 5.5 mol of propane (C3H8) in a barbecue at 101.3 kPa and 28.0°C.   c) What mass of helium would be required to fill a balloon to 6.8 L at 100 kPa and 25°C?

Q: 1. A gaseous compound that actually exists in the environment. 2. It is made up of small particles…

A: 1. REAL 2. REAL 3. BOTH 4. IDEAL 5. IDEAL 6. IDEAL 7. BOTH

Q: Which gas sample has the largest V at the same P & T?

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

Q: In one of his most critical studies into the nature of combustion, Lavoisier heated mercury(II)…

A: The pressure (in atm) of the oxygen that forms at 25.0oC has to be given,

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: What is the pressure, in pascals, exerted by 1299 g CO(g) when confined at -29 ∘C to a cylindrical…

A: Provided mass of CO=1299g Molar mass of CO= 28g/mol Moles of CO=(1299g)/(28g-mol-1) Moles(n) of…

Q: 1.A sample of Br2(g) take 10.0 min to effuse through a membrane. How long would it take the same…

A: As per our company guidelines we are supposed to answer only one question. Kindly repost other…

Q: These two gases are mixed in a steel vessel. What can you say about the relationship between each…

A: a)partial presuure- I=II because partial pressure depend on mole fraction here both have same mole…

Q: Calculate the root mean square velocity of methane at 27 degree Celsius

A: The temperature of the system is given = 27 oC The root mean square speed of the gas can be…

Q: A mixture containing 0.250 mol N2 (g), 0.150 mol CH4 (g), and 0.100 mol O2 (g) is confined in a 1.00…

A: Given: moles of N2 = 0.250 mol moles of CH4 = 0.150 mol moles of O2 = 0.100 mol Temperature = 35 oC…

Q: A mixture containing 0.250 mol N2 (g), 0.150 mol CH4 (g), and 0.100 mol O2 (g) is confined  in a…

A: Recall ideal gas law-                    PV=nRTWhere,pressure of gas is P         Volume of…

Q: he reaction, CH4 + 2O2 → CO2 + 2H2O, occurred in a 30.0 L sealed container at 427 K. Thirty seven…

A: CH4 + 2O2 → CO2 + 2H2OGiven,Volume of sealed container=30.0 L Temperature= 427 KMolar mass of…

Q: About 8.0x 10 tons of urea 10NH,CO] are used annually as a fertilizer. The urea is prepared at…

A: Mass of urea 2.35 ton   Temperature 200°C = (273.15+200)K  Pressure = 145 atm  We have to calculate…

Q: The average kinetic energy of the molecules in a gas sample depends only on the temperature, ?.…

A: The root-mean square speed (vrms) for F2 molecules can be calculated using equation (1). In this…

Q: [3] A mixture of 10.00 g of N2 and 10.00 g of Ar is placed in a 1.00 1 container at 25°C. What is…

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Q: A wine-dispensing system uses argon canisters to pressurize and preserve wine in the bottle. An…

A:

Q: The chlorination of methane occurs in a number of steps that results in the formation of…

A:

Q: In an air-conditioned room at 19.0 ∘C∘C, a spherical balloon had the diameter of 50.0 cmcm. When…

A:

Q: calculate the volume of each product and the energy involved in the transformation for the complete…

A: Given:  P = 760 mm Hg = 1 atm  T = 25° C  So the given condition are standard conditions.  Standard…

Q: What volume in liters of fluorine gas is needed to form 999 L of sulfur hexafluoride gas if the…

A: We are given 999 L of sulfur hexafluoride gas  2.00 atm and 273.15 K: S(s)+ 3F₂(g) → SF₆ (g)

Q: #10: 10.0 L of a gas is found to exert 97.0 kPa at 25.0 °C. What would be the required temperature…

A: Given: Initial Pressure, P1=97.0 kPa The initial volume, V= 10.0 L (constant) The initial…

Q: You analyze a mixture of gases and find it is 37.4% N2 (MW = 28.0 g/mol) and 62.4% CH4 (MW = 16.0…

A:

Q: A gas at 77.5 kPa and 17°C occupies a volume of 850cm^3, at what temperature in degrees Celsius…

A: The question is based on the concept of ideal gas equation. we have to use combined gas law equation…

Q: 4. When I was in Antarctica, we celebrated the turn of the new millennium with a party. We blew up…

A: It is given that the initial temperature of filling the balloons is 19°C (292.15 K) with the initial…

Q: A sample of argon gas occupies a volume of 0.065 m at 101.3 kPa and 25.0°C.What volume would the…

A:

Q: In alcohol fermentation, yeast converts glucose to ethanol and carbon dioxide: C6H12O6(s) ⟶…

A: Reactio equation : C6H12O6(s) →             2C2H5OH(l) + 2CO2(g)Mass of glucose reacts = 5.97…

Q: Butane, C4H10, is a component of natural gas that is used as fuel for cigarette lighters. The…

A: The ideal gas equation is  PV = nRT  P = pressure  V = volume  n = moles of gas = mass/molar mass R…

Q: An investigator is told that a closed vessel holds a pure rare gas. She measures the density of the…

A: The density of the gas, d = 0.8252 g/L Temperature of the gas, T = 298 K Pressure of the gas, P = 1…

Q: In alcohol fermentation, yeast converts glucose to ethanol and carbon dioxide: C6H12O6(s) →…

A:

Q: If a sample of freon-12 gas occupies 350 cm3 at a pressure of 150 psi and a temperature of 15°C,…

A: Given : Initial pressure of gas = 150 psi Initial volume of gas = 350 cm3  Initial temperature = 15…

Q: Atmospheric pressure on the peak of Mt. Everest can be as low as 150. mm Hg, which is why climbers…

A: Given data, P1=30,400 mm HgP2=150 mm HgV1=10 L To calculate the new volume.

Q: What is the difference between effusion and diffusion? A) Diffusion separates gases, and effusion…

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Q: Ethane burns in air to give H20 and CO2. 2 C2 H6 (g) + 7 O2 (g) 4 CO2 (g) + 6 H2O(g) a. What volume…

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Q: What is the partial pressure of CO₂ at 468.2 K in a 25.0 L fuel combustion vessel if it contains…

A: Since you have asked multiple questions, we will solve the first question for you as per our…

Q: 1)If a gas occupies 5 L at 298 K, what temperature is needed to reduce the volume to 2 L if the…

A: Given, a gas occupies 5 L at 298 K i.e.initial volume =5 Linitial temperature =298 Kfinal volume =2…

Q: A rigid gas cylinder contains 370 grams of oxygen gas at 30 atm and 25oC. What must be the final…

A: According to the our policy we should solve one question, if any subparts present then first three…

Q: For the decomposition reaction PCl5(g) = PCl3(g) + Cl2(g), it was determined that when 0.200 mol of…

A: Given: Volume of PCl5 = 1.50 L Moles of PCl5 = 0.2 moles Decomposition of PCl5 = 35%  Temperature of…

Q: 2. A cylindrical tank with piston on top confines a 543.78 K of hydrogen gas in a 1.34 m' space…

A: Pressure , temperature and volume are interrelated for a gas by various laws.

Q: The human body burns glucose C6H12O6 for energy according to this chemical…

A: Given  volume of air exhaled per breath = 500 mL  volume of CO2 = 4100×500 mL = 20 mL = 0.00002 m3…

Q: For many purposes we can treat propane (C,H) as an ideal gas at temperatures above its boiling point…

A: Here we use ideal gas equation because the gas is above -42 degree celcius.

Q: In alcohol fermentation, yeast converts glucose to ethanol and carbon dioxide: C6H12O6(s) →…

A: Note: As per our guidelines, we are supposed to answer only one question when multiple questions are…

Q: Butane, C4 H10, is a component of natural gas that is used as fuel for cigarette lighters. The…

A:

Q: A scientist isolates a sample of gas that occupies a volume of 678.1 mL at 104.3 kPa and 39.27 °C.…

A: Inert gas equation: -  PV=nRT (104.3*0.01atm)*(0.678 L) = n * 0.0821*(39.27 +273.15) n = 0.0275…

Q: Butane, C4H10C4H10, is a component of natural gas that is used as fuel for cigarette lighters. The…

A: 2C4H10+13O2→8CO2+10H2Omass of butane=2gmolar mass of butane=58gmoles=massmolar massmoles of butane =…

Q: gaseous mixture contains 4.56 g propane, C3H8, and 1.22 g chloroform, CHCL3. Assuming that both…

A: Mass of propane  = 4.56 g Mass of chloroform = 1.22 g V = 100 ml = 0.1 L  T = 28oC  = 301 K Molar…

Q: The average kinetic energy of the molecules in a gas sample depends only on the temperature, T.…

A: Given information:Temperature for nitrogen molecule = 357 KTemperature for helium atom = 357 K

Q: 2.00 L container at 22.00C contains a mixture of 1.00 g H2 (g) and 1.00 g H2(g) and 1.00 g He(g). a.…

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Q: What volume of water vapour (in L) will be produced during the production 291 L of hydrogen cyanide?…

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Q: 1. A chemist collects 372 cm³ of gas over water at 90°C and 111.0 kPa. What volume would the dry gas…

A: Note : As per our guidelines we are supposed to answer only one question. Please repost the…

Q: As one step in its purification, nickel metal reacts with carbon monoxide to form a compound called…

A: Pressure = 900 torr Temperature = 350 K

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.