(a) Place the following gases in order of increasing average molecular speed at 300 K: CO, SF, H2S, OC12, HBr. (b) Cal- culate the rms speeds of CO and Cl, molecules at 300 K. (c) Calculate the most probable speeds of CO and Cl2 mole- cules at 300 K.

Q: White phosphorus melts and then vaporizes at high tempera-ture. The gas effuses at a rate that is…

A: The Scottish physical chemist Thomas Graham gives direct relation between rate of effusion of gas…

Q: Q3 A what is the density, in gll, of carbon dioride at gas 43°C and 392 torr? A Sample of an unknown…

A:

Q: Determine the root-mean-square speed (in m/s) of SF6 molecules at 137.1 Torr and 22.17 °C?

A: Root-mean-square speed: The speed of a gas particle depends on the temperature of the gas and its…

Q: The rate of effusion of N, to an unknown gas is 0.756, what is the molar mass of the other gas?…

A: We have to find mass of unknown

Q: At what temperature will 12.00g of Cl2 exert a pressure of 754.4 kPa at a volume of 752 mL?

A:

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: What volume of oxygen gas at 298K and 680torr will react completely with 5.0L ok co gas at the same…

A:

Q: At what temperature is the root-mean-square speed of nitrogenmolecules equal to the root-mean-square…

A: The temperature of the hydrogen molecule is given as 293 K The molar mass of N2 and H2 are 28.014…

Q: If 0.875 L of gas at 286 K expands to 1.731L at 311K and 1.54 atm, what was its inital pressure?

A:

Q: The two isotopes of uranium, 238U and 235U, can be separated by effusion of thecorresponding UF6…

A:

Q: What is the relative mean speed of O2 and N2 molecules in a gas at 25 °C?

A: The mean velocity of a gas molecule is directly proportional to the square root of temperature and…

Q: Calculate the density of nitrogen dioxide gas at 765 Torr and 20oC.

A: Given: The pressure of N2, (P) = 765 Torr = 1.006 atm. The temperature of N2, (T) = 20oC = (273+20)…

Q: What volume does 0.118 mol of helium gas at a pressure of0.97 atm and a temperature of 305 K occupy?…

A: For He gas : Ideal gas equation : PV = nRT 0.97 x V = 0.118 x 0.0821 x 305  V = 3.046 L For Ar gas :…

Q: Use the Maxwell-Boltzmann distribution of speeds to estimate the fraction, of CH4 molecules at…

A: Solution A Maxwell-Boltzmann Distribution may be a chance distribution used for describing the…

Q: What is the mean speed, K, of N2 molecules in air at 25°C?

A:

Q: If the rms speed of a specific gas, x, is 300 k at 450 m/s, obtain the rms speed of molecules of x…

A: We know that the rms speed for any molecule is given by the below formula.  Here R = universal gas…

Q: (a) Place the following gases in order of increasing averagemolecular speed at 300 K: CO, SF6, H2S,…

A: The average molecular speed is inversely proportional to the square root of the molar mass. As the…

Q: Describe how mass and temperatureaffect the distribution of molecular speedsof gases

A: Gas is the state of matter where the molecules are loosely held with each other.The molecules move…

Q: A sample of sulfur hexafluoride gas occupies 9.10 L at 198C. Assuming that the pressure remains…

A:

Q: A sample of neon of mass 425 mg occupies 6.00 dm3 at 77 K. What pressure does it exert?

A: Ideal gas equation:                                                      PV = nRT where, P=…

Q: At what temperature does the rms speed of O2 molecules equal 375 m/s?

A: The rms speed (Urms) of a gas molecule is expressed as shown below: Urms=3RTM…

Q: The speed that a body of any mass must have to escape from the earth is 1.07 x 10ª m s-'. At what…

A:

Q: the pressure of Penguinite gas (MM = 85.1 g/mol) is measured to 800. torr at 35 ° calculate its…

A: Temperature = 35°C = 308.15 K Pressure = 800 Torr Molar mass = 85.1 g/mol Density = ? Ideal gas…

Q: At constant pressure, the mean free path 1l2 of a gas moleculeis directly proportional to…

A: Let the mean free path be ƛ, temperature be T, Pressure be P and diameter be d. At constant…

Q: At what temperature does the speed of carbon dioxide molecules, CO2, equal 350.0 m/sec?

A:

Q: Calculate the pressure exerted by 0.28 g of sulfur hexafluoride (SF6), a colorless, odorless,…

A:

Q: A 3.00-L gas sample at 100. ̊C and 600. torr contains55.0% helium and 45.0% xenon by mass. What are…

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Q: What is the density of ammonia, NH3, at 800 torr and 25°C?

A:

Q: A domestic water-carbonating kit uses steel cylinders of carbon dioxide of volume 250 cm3 They weigh…

A: Mass of carbon dioxide is determined as shown below: 1.04 kg-0.74 kg=0.3 kg=300 g Number of moles of…

Q: What property of molecules of real gases is indicated by van der waal’s constant ‘a’?

A:

Q: In an N2 atmosphere, what temperature would a hot air balloon need to be to achieve neutral buoyancy…

A: Answer  Given that The buoyant force is equal to the weight of the displaced air

Q: What is the the root-mean-square speed of H2 molecules at 15.4 oC?

A: Root-mean-square speed: The speed of a gas particle depends on the temperature of the gas and its…

Q: Calculate the root-mean-square speeds of CO2 molecules and He atoms at 20 °C.

A: Root mean square speeds of CO2 and He has to be calculated.

Q: At what pressure does 5 grams of H2 occupy a volume of 50L at a pressure of 1.01atm?

A: Welcome to bartleby !

Q: The rate at which argon, (Ar) effuses through pinhole is 4.5 ml/min. At what rate will the hydrogen…

A: Relation between rate of effusion and molar mass of gases: R2/R1 = (M1/M2)1/2 Where,  R1 =  rate of…

Q: What volume does 12.5 g of argon gas at a pressure of 1.05 atmand a temperature of 322 K occupy?…

A: Ideal gas equation The equation that gives the relationship between pressure, volume and temperature…

Q: The atmosphere of Mars is mostly CO2 (molar mass 44.0 g/mol) under a pressure of 650 Pa, which we…

A: Introduction :  We have to calculate RMS and density .

Q: Using the same sample of gas (P1P1P_1 = 275 torrtorr , T1T1 = 36 ∘C∘C ), we wish to change the…

A:

Q: what is the temperature in degrees celsius of 5.23 moles og helium (He) gas confined to a volume of…

A: Here given, Pressure (P) = 5.23 atm Volume (V) = 5.23 L Mole (n) = 5.23 mol Gas constant (R) =…

Q: (a) Place the following gases in order of increasing averagemolecular speed at 25 °C: Ne, HBr, SO2,…

A: The molecular speed of gas molecules is inversely proportional to the root of their molar mass.…

Q: A 0.350 g sample of nitrogen gas (N2) at 90.5 K exerts a pressure of 55.0 kPa. What volume will it…

A: Assume nitrogen gas shows ideal gas behavior. The ideal gas equation is: PV = nRT Here, P is…

Q: A 5.00 mol sample of oxygen gas is confined to a pressure of 5atm at a temperature of 27degrees…

A: Given  O2 gas Moles of O2 gas, n = 5.00 mol Pressure of O2 gas , P = 5 atm Temperature of O2 gas , T…

Q: Using the same sample of gas (P1 = 615 torr, T1 = 5 ∘C ), we wish to change the pressure to 6150…

A: The scientists studied the behavior of gases with respect to pressure, temperature, volume and…

Q: You have an equimolar mixture of the gases SO2 and O2, along with some He, in a container fitted…

A: Given: equimolar mixture of the gases SO2 and O2 along with some He, in a container fitted with a…

Q: 1A10 Balloens are still used to deploy sensoes that menitor metecrological phenomena and the…

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Q: A gas at constant temperature occupies a volume of 2.40 dm3 and exerts a pressure of 110 kPa.  What…

A:

Q: Consider the following reaction: C(s) + O2(g) -CO2(g) What volume of oxygen gas at 25 °C and 1.02…

A: The ideal gas equation is shown below: PV = nRT Where; P = pressure of the gas V= volume of the gas…

Q: if the density of water is 1.00g/ml and desity of density of mercury is 13.6g/mL,how high a coloumn…

A: Since the pressure = 1 atm                                    (  standard atmospheric pressure)…

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.