If it takes 6.14 seconds for 16.3 mL of C3Ha(g) gas to effuse through a pinhole into a vacuum, how many seconds would it take 13.4 ml of N2(g) to escape under the same conditions?

Q: To minimize the rate of evaporation of the tungsten filament, 1.4 × 10-5 mol of argon is placed in a…

A: The pressure of argon in light bulb at 23 degree Celsius is calculated as,

Q: How many grams of water vapor would be required to occupy a 617 mL flask at 0.950 atm and 94.7…

A:

Q: At a given temperature and pressure, it takes 9.48 minutes for a 1.5 L sample of He to effuse…

A: In this question, we want to determine the time for F2 effuse under given temperature and pressure.…

Q: A sample of air occupies 1.0 L at 25 °C and 1.00 atm. What pressure is needed to compress it to 100…

A: Here given, Initial Volume (V1) = 1 L  Initial Temperature (T1) = 250 C = (273 +25) K = 298 K…

Q: What is the molar mass of 1.87 g of a gas that occupies 1.3 gallons at 135ﾟF and 8.9 psi?

A:

Q: A given volume of nitrogen, N2, required 68.3 mL to effuse from a hole in a chamber. Under the same…

A: Given  rate of N2 = 68.3 s rate of another gas = 85.6 s molar mass of N2 = 28.01 amu  Graham's law…

Q: 3. What is the pressure exerted by 7.62 g of Rn gas at 25.7°C in a 8.3 L flask?

A: We can find pressure exerted by Rn gas using Ideal gas equation.   First of all we have to find mole…

Q: The mass of pure methane (CH4) gas has to be mixed with 70 g of pure CO so that the partial pressure…

A: As per our guidelines, we are supposed to do the first question. To get the answer to the second…

Q: Suppose  5.0g of argon  escapes a volume by effusion. What mass of nitrogen  would escape under the…

A: Avagodra law  Under the same conditions of temperature and pressure- equal volumes of all gases…

Q: A sample of Br, (g) takes 24.0 min to effuse through a membrane. How long would it take the same…

A: Answer: 12 min

Q: What pressure is exerted by 129.5 g of CH4 in a 0.3900 L steel container at 215.7 K?

A:

Q: calculate the pressure exerted by 444 milligrams of chlorine gas in 990. mL sealed flask at 27.0…

A: Mass of Chlorine gas m = 444 milligrams = 4441000g=0.444g    Volume of container V = 990 mL =…

Q: At what pressure in atm does ethane (C2H6) have a density of 37.2 g/L at 76.6 °C?

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Q: A given volume of Nitrogen (28.02 g/mol) needs 52.3 seconds to effuse from a hole in a chamber.…

A:

Q: Calculate the pressure (atm) exerted by 1.00 mol of gascontained in a 7.55-L cylinder at 458C.

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

Q: What is the molar mass of 1.87 g of a gas that occupies 1.3 gallons at 135 °F and 8.9 psi?

A: Given data is as follows: The mass of the gas = 1.87 g The volume of the gas = 1.3 gallons The…

Q: What is the root-mean-square speed of CO at 113 degrees Celsius?

A: Temperature = 113 C =(113+ 273) K =386K Molar mass of CO  = 28.01 g/mol

Q: If helium effuses through a porous barrier in 1.78 min, how much time (in min) would it take the…

A: Answer: 3.67 min it take the same amount of NH3 (ammonia) to to effuse through the same barrier…

Q: A quantity of gas at 27.0 is heated in a closed vessel until the pressure is doubled. To what…

A: Using gas equation, we have (P1*V1) /T1=(P2*V2) /T2 where P=Pressure, V=Volume and T=Absolute…

Q: If it takes 6.14 seconds for 16.3 ml of C,H,(g) gas to effuse through a pinhole into a vacuum, how…

A: Graham's law of effusion:- under similar conditions the rate of effusion of a gas is inversely…

Q: At what temperature will a molecule of uranium hexafluoride, the densest gas known, have the same…

A: Formula for root mean square speed of Molecule at Kelvin temperature is ; Where , T = temperature…

Q: To minimize the rate of evaporation of the tungsten filament,1.4 x10-5 mol of argon is placed in a…

A: Given information:

Q: What is the ratio of the average kinetic energy of a SO2 molecule to that of an O2 molecule in a…

A: …

Q: At a given temperature and pressure, Helium takes 4.98 minutes for a 1.5 L sample to effuse through…

A: Graham`s law of diffusion: the rate of effusion of a gas is inversely proportional to the square…

Q: To what temperature must neon atoms be cooled so that they have the same rms speed as N2 molecules…

A: we have   vrms=3RTM   Equating (v)rms for Ne and N2, we have (v)rms(Ne) = (v)rms N2…

Q: Which set of gases is listed from lowest to highest root-mean-square speed at 25°C? Ne <NO < Ar <CH4…

A: The root mean square speed of any gas is given by, =&gt; Vrms = 3RTM where R = gas constant = 8.314…

Q: What pressure is exerted by 780.4 g of CH4 in a 0.870 L steel container at 130.3 K?

A:

Q: To what temperature must a balloon initially at 25 degrees Celsius and 2.00 L, be heated in order to…

A: Initial temperature T1 =25°C                            T1 = (25+273)K…

Q: If it takes 6.84 hours for 1.00 L of nitrogen, N2, to effuse through the pores of a balloon,…

A: Given as  The time taken for 1.00 L of nitrogen is 6.84 hrs to effuse through the pores of a ballon.…

Q: Answer the following and give an explanation or reason: 3. Which assumptions of the kinetic…

A: The assumptions of the kinetic theory of gases are as follow The particles of gas are small and…

Q: Synthetic diamonds can be manufactured at pressures of 6.00 x 10 4 atm. If we took 2.00 liters of…

A:

Q: Which has a higher root mean square velocity, H2(g) at 150 K or He(g) at 650K?

A:

Q: If it takes 6.14 seconds for 16.3 mL of C₃H₈(g) gas to effuse through a pinhole into a vacuum, how…

A:

Q: If volume =2.03 L at 24.0 Degrees Celsius then volume = 3.01L at what temperature? ( pressure, n=…

A: NOTE : Assuming the substance we are talking about in this question is a gas as nothing is mentioned…

Q: If a tank contains 453 mol of propane, what volume of propane gas could be supplied at 22°C and…

A: Given the pressure of propane gas is --- 14.22psi  Temperature T=22oC The number of moles of propane…

Q: The density of liquid octane, C8H18, is 0.7025 g/mL. If 1.00 mL of liquid octane is vaporized at…

A: Data given: Density of octane = 0.7025 g/mL Volume of octane = 1.00 mL Temperature, T = 100 °C =…

Q: If 8.278 x 10-4 moles of gas X effuses through a hole in 86.9 seconds and 1.740 x 10-4 mol of Ar…

A: The rate of unknown gas, r1 = 8.278 x 10-4 moles /86.9 s = 9.5 x 10-6 moles/s The rate of argon gas,…

Q: At what temperature would CO2 molecules have an rms speed equal to that of H2 molecules of 20.0…

A:

Q: Calculate the ratio of the effusion rates of N2 gas and O2 gas.

A: The rate of effusion of any gas is inversely proportional to the square root of its molar mass. The…

Q: In a common Freshman College Laboratory experiment, KClO3 is decomposed by heating to give KCl and…

A: 2 KClO3 ---&gt; 2 KCl + 3O2  Volume of O2 = 0.238 L  Temperature = 28°C  Pressure = 752 mm Hg 760 mm…

Q: If an inert gas diffuses 0.317 times as fast as does helium through the same container and at the…

A:

Q: If it takes 3.52 seconds for 10.0 mL of helium to effuse through a hole in a container at a…

A: Given : Time required by helium to effuse = 3.52 s Volume of helium i.e He effused = 10.0 mL And…

Q: If it takes 12.0 hours for a volume of nitrogen, N2 to effuse through pores in a balloon, how long…

A:

Q: What is the root mean square velocity of O2 at 375 K? Where R is the ideal gas constant(8.314 J/mol…

A: Interpretation-  To determine the root mean square velocity of  O2 at 375 K? Where R is the ideal…

Q: A scuba diver's tank contains 0.250kg of O2 compressed into a volume of 3.10L. What volume (in…

A: The gas constant (R) in L atm/mol K is equal to 0.082 L atm/mol K. The mass of 0.250 kg is…

Q: At what pressure (in mm Hg) does a gas occupy 2.75 L at 323 K if the gas occupies 1.97 L at 223 K…

A: Given,  V2 = 2.75 L T2 = 323 K P2 = ? V1 = 1.97 L T1= 223 K and P1 = 945 mm Hg

Q: A given volume of oxygen, O2, required 62.0 seconds to effuse from a hole in a chamber. Under the…

A: The formula which relates time to effuse for a gas and molecular mass is shown below: Time for…

Q: If it takes 10.6 hours for 1.00 L of nitrogen, N2, to effuse through the pores in a balloon how long…

A: Given, volume of gas effused of N2 and He gas are 1.0 Ltime required to effused  N2  gas =10.6…

Q: Suppose 0.246 mol of SO2 gas was compressed into a 1.25L steel cylinder at a temperature of 38.0℃.…

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.