A sample of Kr gas is observed to effuse through a porous barrier in 5.98 minutes. Under the same conditions, the same number of moles of an unknown gas requires 5.13 minutes to effuse through the same barrier. The molar mass of the unknown gas is_ g/mol

A sample of Kr gas is observed to effuse through a porous barrier in 5.98 minutes. Under the same conditions, the same number of moles of an unknown gas requires 5.13 minutes to effuse through the same barrier. The molar mass of the unknown gas is_ g/mol

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: 9. A gas tank contains 2 gases P₂O4 and CH₂Br. If 0.029 moles of P2O4 effuses through a pinhole in…

A: The process of escaping the gas molecule through a very small hole is known as effusion. During…

Q: molar

Q: a sample of an unknown gas defuses at 17.42 min. an equal volume of hydrogen gas in the sam…

A: According to the Graham's law of Gaseous diffusion, the rate of diffusion of the gas is inversely…

Q: A sample of carbon dioxide gas, CO₂, effuses from at container at a rate of 24.20 ml/min. A sample…

A: Rate of effusion of CO2 = 24.20 ml/min Unknown gas = 18.40 ml/min Molar mass of Unknown gas = ?

Q: sample of argon gas (M=39.948 g/mol) effuses through a porous barrier at a rate that is 0.653 times…

Q: An unknown gas effuses at a rate 1.50 times the rate of COCl₂. What is the molar mass of the unknown…

A: To solve this problem we will use the concept of Graham’s Law .

Q: Calculate the molar mass of the unknown gas. (Remember that the faster the rate of effusion, the…

Q: A sample of Helium gas is observed to effuse through a pourous barrier in 5.26 minutes. Under the…

A: Given, effusion time He gas =5.26 minuteseffusion time of unknown gas =17.1 minutesboth the gas has…

Q: Determine the partial pressure and number of moles of each gas in a 18.50 L vessel at 33.9 °C…

Q: CO2 effuses 1.42 times more rapidly than the unknown gas. What is the molar mass of the unknown gas?

Q: For a 0.00554 mol sample of H2 and a 0.00912 mol sample of N2, total pressure is 23.44 torr. What is…

A: Given, moles of H2 = 0.00554 moles Moles of N2 = 0.00912 moles Total pressure, pT = 23.44 torr

Q: If a gas mixture in a container consists of 500 torr Ne, 250 torr He, and 10 torr H2, what is the…

A: The given mixture of gases consists of neon, helium and hydrogen. The total pressure of the gases is…

Q: A flask contains a mixture of two gases: NO2 and Ne. The flask holds 0.788 mol of NO2 and an unknown…

Q: A gas of unknown molecular mass was allowed to effuse through a small opening under…

A: Effusion is the process of movement of gaseous molecules through a small hole. The rate of effusion…

Q: A sample of NH3 gas is observed to effuse through a pourous barrier in 3.61 minutes. Under the same…

A: According to Graham’s diffusion law, the rate of effusion of gases is inversely proportional to the…

Q: A sample of O3 gas is observed to effuse through a pourous barrier in 7.68 minutes. Under the same…

A: Graham’s law states that rate of effusion is inversely proportional to the square root of molar mass…

Q: An unknown gas effuses at a rate 2.00 times the rate of Kr. What is the molar mass of the unknown…

A: The objective of this question is to find the molar mass of an unknown gas given that it effuses at…

Q: ydrogen gas (H2) effuses 3.16 times faster than a second unknown gas. What is the molar mass of…

A: According to Graham’s law of effusion, the rate of effusion of gases is inversely proportional to…

Q: A mixture contains O2 at 700. torr pressure, F2 at 900. torr pressure, and Cl2 at 400. torr…

A: Given that, Pressure of O2=700 torr pressure of F2=900 torr pressure of Cl2=400torr then,

Q: A gas sample occupies 563 mL at 18.0 °C and 79.2 kPa. How many gas molecules are in the sample?

A: Given, Volume = 563 mL Temperature = 18.0 °C Pressure = 79.2 kPa To calculate : number of gas…

Q: the same barrier. The molar mass of the unknown gas is ____g/mol.

A: We have to find molar mass of the unknown gas

Q: A mixture of He and Ne need to be separated. What will be the ratio of the rates of effusion of He…

A: According to Grahm's law of effusion, at similar temperature and pressure conditions rate of…

Q: An unknown gas effuses 2.4 times more rapidly than O2. What is the molar mass of the gas?

A: Graham's law effusion It state that rate of effusion of gas is inversely proportional to the square…

Q: A 2.0 L flask contains 0.363 g of nitrogen gas and 0.796 g of carbon monoxide gas. What is the mole…

A: Number of mols of N2 = given mass / molar mass = 0.363 g / 28.0134 g/mole = 0.129 moleNumber of mols…

Q: Calculate the total pressure of a gas mixture consisting of 3 moles of gas A and 2 moles of gas B,…

A: The ideal gas law is a fundamental equation in physics and chemistry that describes the behavior of…

Q: A sample of SO2 gas is observed to effuse through a pourous barrier in 3.70 minutes. Under the same…

A: Given- Rate of effusion of SO2 gas = 3.70 min Rate of effusion of unknown gas = 1.66 min To find-…

Q: Gas Y effuses half as fast as O2. What is the molar mass of gas Y?

A: rate of effuses is inversely proportional to the square root of the molar mass of gas.

Q: What is the partial pressure of neon that's 18% by volume in a gas mixture with a total pressure of…

A: Answer: According to Dalton's law of partial pressure, partial pressure of any gas in the gaseous…

Q: A sample of an unknown gas effuses in 11.1 min. An equal volume of H2 (2.016 g mol-1) in the same…

A: Given, Time: Time of unknown gas effuse (tg) = 11.1 min Time of H2 effuse (tH2) = 2.42 min Molar…

Q: Imagine that you have an ideal gas in a 4.40 LL container, and that 2350 molecules of this gas…

A: Number of collisions is directly proportional to pressure. If pressure is high, collisions are also…

Q: A 2.00 m3 container holds a sample of O2 gas. At 287 K the pressure of the container is 1.04 x 105…

A: Given, Volume of the container, V = 2.00 m3 = 2000…

Q: An unknown gas effuses at a rate 0.500 times the rate of CH4. What is the molar mass of the unknown…

Q: An unknown gas effuses at a rate 1.50 times the rate of COCI2. What is the molar mass of the unknown…

Q: The rate of effusion of a particular gas was measured and found to be 24.0mL/min. Under the same…

Q: Determination of the Universal Gas Constant Postlab 1. An evaluation of Rwas performed using the…

Q: A mixture of He and CO2 is placed in a 7.5L flask at 22C. The partial pressure of the He is 2.2 atm…

A: Given data:

Q: Effusion is the process where a gas flows through a small hole in a container. Graham’s Law of…

Q: A sample of He gas is observed to effuse through a pourous barrier in 5.26 minutes. Under the same…

A: According to Graham's law of effusion, the rate of effusion of two gases is inversely proportional…

Concept explainers

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.

Question

A sample of Kr gas is observed to
effuse through a porous barrier
in 5.98 minutes. Under the same
conditions, the same number of
moles of an unknown gas
requires 5.13 minutes to effuse
through the same barrier. The
molar mass of the unknown gas
g/mol
is

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Determine the given values

VIEW

Step 2: Determination of molar mass of the unknown gas

VIEW

Solution

VIEW

Step by step

Solved in 3 steps with 7 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

A 1.80 m3 container holds a sample of O2 gas. At 299 K the pressure of the container is 1.06 x 105 Pa. How many moles of O2 are in the container?
A 2.00 m3 container holds a sample of O2 gas. At 290 K the pressure of the container is 1.18 x 105 Pa. How many moles of O2 are in the container?
A sample of H_2 gas is observed to effuse through a porous barrier in 2.76 minutes. Under the same conditions, the same number of moles of an unknown gas requires 9.71 minutes to effuse through the same barrier. The molar mass of the unknown gas is:
150. g of an unknown monatomic gas phase element has just been released into a container of volume 90.95 L at a pressure of 1.0114 atm. If the temperature of the room is 25.4°C, what are the molar mass and the identity of the gas? molar mass identity of the gas
A sample of O2 gas is observed to effuse through a porous barrier in 7.64 minutes. Under the same conditions, the same number of moles of an unknown gas requires 12.7 minutes to effuse through the same barrier. The molar mass of the unknown gas is g/mol.
A gas of unknown molecular mass was allowed to effuse through a small opening under constant pressure conditions. It required 72 s for 1.0 L of the gas to effuse. Under identical experimental conditions it required 27 s for 1.0 L of 02 gas to effuse. Calculate the molar mass of the unknown gas. (Remember that the faster the rate of effusion, the shorter the time required for effusion of 1.0 L; that is, rate and time are inversely proportional.) 367.1175859 X g/mol
MI < CO C. Under identical conditions, separate samples of O2 and an unknown gas were allowed to effuse through identical membranes simultaneously. After a certain amount of time, it was found that 5.75 mL of O2 had passed through the membrane, but only 3.86 mL of of the unknown gas had passed through. What is the molar mass of the unknown gas? unknown molar mass: g/mol MacBook Pro The %23 %$4 delet 4. 5. 3. R. P. H. K. B. MOSISO command uondo
A sample of SO2 gas is observed to effuse through a porous barrier in 5.45 minutes. Under the same conditions, the same number of moles of an unknown gas requires 4.27 minutes to effuse through the same barrier. The molar mass of the unknown gas is g/mol.
A sample of O3 gas is observed to effuse through a pourous barrier in 1.06 minutes. Under the same conditions, the same number of moles of an unknown gas requires 0.736 minutes to effuse through the same barrier. The molar mass of the unknown gas is g/mol.
For an ideal gas, calculate the pressure of the gas if 0.272 mol occupies 350 mL at 31 °C.
a gas mixture in a 5 L container at 298 K contains 5.0 mol of Ne and 5 mol of Ar. which gas exerts a greater partial pressure
Calculate the final pressure in torr when the volume of a gas 750 ml at 29.7psi is released into a 2 liter container