A sample of carbon dioxide diffused in 100 seconds. Under the identical set of conditions, a sample of an unknown gas was allowed to diffuse. The diffusion took 30.2 seconds. Calculate the molecular mass of the unknown gas and identify it.

Q: The average molecular speed in a sample of CH4 gas at a certain temperature is 643 m/s. The average…

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Q: 2. A sample of He gas effused 5.3 times faster than an unknown gas, under the same conditions.…

A: Given: The Helium gas with atomic  mass of = 4 u.

Q: List the standard conditions for gas measurements.

A: Standard conditions for gas measurements are used when calculations are performed assuming the gases…

Q: The average molecular speed in a sample of Ar gas at a certain temperature is 441 m/s. The average…

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Q: After collecting all the gas, the student pushed down the piston to half of the original Volume and…

A: This is a problem from thermodynamics. If he pushed down the piston to half of the original Volume…

Q: What was Boyles most famous discovery about gases?

A: Introduction In 1662, a scientist Robert Boyle studies the changes in volume of a particular gas by…

Q: Convert 2.68 atm to cm Hg

A: 1 atm = 76 cm hg

Q: An unknown gas diffuses at a rate of 14.8 mL/s. Under the same conditions of temperature and…

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Q: The average molecular speed in a sample of NH3 gas at a certain temperature is 628 m/s. The average…

A: Given, Average molecular speed of NH3 = 628m/s. Molar mass of NH3 = 17g/mol. Molar mass of O2 =…

Q: What additional information must be considered to determine the number of moles of gas produced? The…

A: The numbers of moles calculation we require VOLUME , PRESSURE and TEMPERATURE. Volume of gas can be…

Q: Part C - Which of the follwing statements is not consistent with the postulates of the kinetic…

A: According to the Postulates of  kinetic molecular theory for gases -  1. Every gas consists of a…

Q: 100cm of a gas diffuses in 15 minutes, when 120cm³ of SO, diffuses in 20 minutes. What is the…

A: 1) unknown gas :-     volume = V1 = 100cm3      time taken = t1 = 15 minutes  2) SO2 gas :-…

Q: At 4.00 L, an expandable vessel contains 0.864 mol of oxygen gas. How many liters of oxygen gas must…

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Q: convert 797 mm Hg to atm

A: Given : Pressure in mm Hg = 797 mm Hg

Q: Which of the following assumptions is or are valid based on kinetic molecular theory? I. Gas…

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Q: Determine the molar mass (in g/mol) of a gas that travels with an effusion time that is 1.55 times…

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

Q: Convert 797 mmHg to atm.

A: Since 1 atm = 760 mm Hg

Q: It took 5.6 minutes for 2.0 L helium to effuse through a porous barrier. How long will it take for…

A: The root-mean-square (RMS) velocity is represented as follows μrms=3RTMmR= Gas constantT= Absolute…

Q: The time required for a given volume of N 2 gas to expand through an opening is is 30.0 s. Calculate…

A: Concept - Effusion is the process in which a gas escapes from a container through a hole of diameter…

Q: Hydrogen gas (H2) effuses through a porous container 8.97-times faster than an unknown gas. Estimate…

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Q: A scientist is allowing two different gases to effuse through a filter into a room if the mass of…

A: Mass of first gas = 16 Mass of second gas = 1  Rate of diffusion (r) ∝ 1/M  So molar mass of second…

Q: It required 45.0 seconds for a certain number of moles of gas to pass through a small opening into a…

A: The molar mass of the unknown gas has to be given, FORMULA USED:  The rate of the effusion of a gas…

Q: The average molecular speed in a sample of O3 gas at a certain temperature is 354 m/s. The average…

A: Given data: Average Molecular speed of O3 = 354 m/s Molar mass of CH4 = 16.0 g/mol. Molar mass of O3…

Q: The average molecular speed in a sample of He gas at a certain temperature is 1.37x10° m/s m/s at…

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Q: * What is the relationship between molecular mass of a gas to its rate of effusion? A. The lighter…

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

Q: 300 mL nitrogen gas reacts with 751 mL hydrogen gas. both gases are at the same temperature and…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: the time required for given volume of Nitogen molecule to duffuse through an orifice is 35 seconds.…

A: Use concept of grams law of diffusion t2/t1=M.w2/M.w1 And get the answer.

Q: A mixture contains O2 at 429 torr pressure, F2 at 794 torr pressure, and Cl2 at 171 torr pressure.…

A: Total pressure is given by Dalton's law i.e. total pressure is equal to sum of partial pressure of…

Q: Gas pressure is caused by A. gas molecules hitting other gas molecule B. gas molecules colliding…

A: Pressure is determined by the flow of a mass from a high pressure region to a low pressure region.…

Q: As you increase the temperature of a gas in a sealed, rigid container, what happens to the density…

A: As you increase the temperature of a gas in a sealed, rigid container, what happens to the density…

Q: Which of the following statements regarding the kinetic molecular theory of gases is NOT correct?

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Q: How much more rapidly does a sample of He(g) effuse than a sample of Ar(g) under the same…

A: We have to calculate the rate of effusion on comparing He and Ar.

Q: The average molecular speed in a sample of  CO2 gas at a certain temperature is 382 m/s. The…

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Q: The average molecular speed in a sample of gas at a certain temperature is 1.89×103 m/s. The…

A: The average molecular speed in a sample of gas is 1.89×103 m/s at the same temperature.

Q: a In order to change the density of the gas, the student increased the temperature of the gas to 100…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: How do diffusion and effusion differ? How are they similar?

A: Introduction :  Diffusion can be defined as the tendency of the molecules of a given substance to…

Q: The average molecular speed in a sample of NH3  gas at a certain temperature is 583 m/s. The…

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Q: The average molecular speed in a sample of N2 gas at a certain temperature is 522 m/s. The average…

A: The temperature of N2 and O3 are same. Then, using Grahams Law the molecular speed of O3 gas is…

Q: The average molecular speed in a sample of Ne gas at a certain temperature is 623 m/s. The average…

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Q: At the standard temperature of 0°C and the standard pressure of 1 atm, how many moles of gas does it…

A: Given,  At the standard temperature of 0°C and the standard pressure of 1 atm, the moles of gas does…

Q: Why do you need to subtract 0.15 mL from every measurement of the volume of the trapped bubble of…

A: A quantitative analysis where the amount of substance is calculated by measuring the volume is…

Q: Hydrogen gas effuses through a porous container 8.97-times faster than an unknown gas. Estimate the…

A: Hydrogen gas effuses through a porous container 8.97-times faster than an unknown gas. Estimate the…

Q: Use the References to access important values if needed for this question. A sample of NH3 gas is…

A: Rate for NH3 gas = 3.84 minutes  Rate for unknown gas = 5.73 minutes Molar mass of NH3 = 17.03…

Q: Given the formula for The Gas Law: PV = nRT. Katie tried to solve for the V variable in order to…

A: The gas laws are the law that shows the behavior of any gas on the basis of the following…

Q: A 2.25-m3 (cubic meters) weather balloon is filled with 372 g of helium gas at 22.0oC. The balloon…

A: Pressure of balloon at altitude , P= 405 torr = ( 405 / 760 ) atm = 0.5329 atm  Temperature T = - 20…

Q: Consider a 1.0-L sample of helium gas and a 1.0-L sample of argon gas, both at room temperature and…

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Q: The average molecular speed in a sample of AR gas at a certain temperature is 432 m/s. The average…

A: Average speed is related to temperature ( T )  and molar mass of the gas ( M ) by the expression

Q: Enter your answer in the provided box. Solid white phosphorus melts and then vaporizes at high…

A: Rate of effusion of gaseous white Phosphorous = RP Rate of effusion of Neon = RNe It is given that…