´A gas of unknown molecular mass was allowed to effuse through a small opening under constant-pressure condi- tions. It required 105 s for 1.0 L of the gas to effuse. Under identical experimental conditions it required 31 s for 1.0 L of O, gas to effuse. Calculate the molar mass of the

´A gas of unknown molecular mass was allowed to effuse through a small opening under constant-pressure condi- tions. It required 105 s for 1.0 L of the gas to effuse. Under identical experimental conditions it required 31 s for 1.0 L of O, gas to effuse. Calculate the molar mass of the

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: A sample of nitrogen dioxide gas, NO₂, effuses from at container at a rate of 48.8 ml/min. At what…

A: According to Graham's law, at constant pressure and temperature, molecules or atoms with lower…

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

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

Q: A sample of oxygen gas is collected over water at 25°C at a total pressure of 748.5 torr, with a…

A: Given, Temperature = 25°C Total pressure = 748.5 torr Partial pressure of water = 23.8 torr…

Q: The reaction of metallic aluminum with aqueous hydrochloric acid produces hydrogen gas. 2 Al(s) +…

A: Given,The reaction:2 Al(s) + 6 HCl(g) 2 AlCl3 (aq) + 3 H2 (g)volume of hydrogen gas = 256.7 mLtotal…

Q: Three glass bulbs, joined by closed stopcocks, have the following volumes and initial pressures of…

Q: A helium-filled weather balloon has a volume of 584 L at 16.9°C and 755 mmHg. It is released and…

Q: A gas mixture contains each of the following gases at the indicated partial pressures N 2 ,216 torr;…

A: Partial pressure of N2 = 216 torr ...Or because 1 atm = 760 torr ...so, = 216 torr × (1 atm / 760…

Q: At 25.0 ° C, a 10.00 L vessel is filled with 5.25 moles of Gas A and 2.60 moles of Gas B. What is…

A: According to the ideal gas law, we know that PV = nRT Where P = pressure of the gas V = volume of…

Q: Use the References to access important valties if hee for this quest A sample of gas contains 0.1301…

Q: A 320.mol sample of ideal gas is heated in a 2.00L vessel. The pressure in the vessel is 2.50atm.…

A: Initial pressure (P1) = 2.50 atm Initial volume (V1) = 2 L Initial moles of gas (n1) = 320 mol New…

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: What volume of chlorine gas at 25.2 degrees Celsius and 0.950 atm can be produced by the reaction…

A: Step 1:

Q: A sample of an unkown gas effuses in 17.42 min. An equal volume of hydrogen gas in the sam apparatus…

A: Given that: Time of effusion of unknown gas = 17.42 min Time of effusion of Hdrogen gas = 2.15 min…

Q: A mixture of 30.74 moles of argon, 13.1 moles helium, 20.59 moles neon, and 42.99 moles krypton is…

A: Given data T = 141.83 °C V= 2792.92 L Number of moles are given of different gases

Q: A vessel contains 15.0 mol of oxygen gas and 15.0 mol of carbon monoxide gas at a temperature of…

Q: When 15.0 g of fluorite (CaF2) reacts with excess sulfuric acid, hydrogen fluoride gas is collected…

A: . The reaction is as follows CaF2(s) +H2SO4(excess) →2HF(g) +CaSO4(s) Moles of calcium fluorite…

Q: A 2.50 L sample of nitric oxide gas at 100 ∘C is cooled to 20 ∘C. If the pressure remains constant,…

A: given ; V1 = 2.50 L T1 = 100OC T2 = 200C Given conditions is that the pressure remains constant so,…

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 an unknown gas effuses in 13.7 min. An equal volume of H, in the same apparatus under…

A: We have to calculate the molar mass of an unknown gas.Given: time of effusion of unknown gas = 13.7…

Q: 1.50 grams of nitrogen (N₂) gas is sealed in a 750.00 ml container at 35.0°C. Calculate the pressure…

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: One mole of hydrogen gas has a mass of 2.02 g. Use the molar volume value 22.6305 mol/L of hydrogen…

A: Given:Molar volume of hydrogen gas at STP = 22.6305 L/mol (i.e. volume of one mole of hydrogen…

Q: 2. Carbon monoxide gas effuses from a container in 4.1 minutes. The same quantity of an unknown gas…

A: We will use Grahm Law of effusion for this numerical.

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: If equal amounts of the four inert gases Ar, Ne, Kr and Xe are released at the same time at one end…

Q: An effusion container is filled with 2 L of an unknown gas. It takes 400 s for the gas to effuse…

A: Volume of an unknown gas effuses in 400 s = 2 LVolume of oxygen gas effuses in 161 s = 2 LMolar mass…

Q: Determine the pressure exerted by 3.00 mol of Ar gas having a volume of 0.500 L at 160.0 K, using…

Q: An unknown perfect gas was detected in the breath of a ferret. It appears to be made entirely of…

Q: Three glass bulbs, joined by closed stopcocks, have the following volumes and initial pressures of…

A: Bulb A: 100. mL of H2S(g) at 190. torrBulb B: 200. mL of He(g) at 1.00 atmBulb C: 500. mL of N2 (g)…

Q: Three glass bulbs, joined by closed stopcocks, have the following volumes and initial pressures of…

Q: a) 1.488×10-4 mol of an unidentified gaseous substance effuses through a tiny hole in 81.2 s. Under…

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

Q: A sample of N2O gas effuses from a container in 42 seconds.How long would it take the same amount of…

A: A gas law that relates the effusion rates of two gases is Graham's Law of Effusion. According to…

Q: 2.58 gram sample of an unknown gas is found to occupy a volume of 1.53 L at a pressure of 687 mmHg…

A: Given that: Mass of gas = 2.58g Volume(V) = 1.53L P = 687 mmHg = 687mmHg×1atm/760mmHg = 0.9039atm T…

Q: Consider a reaction vessel of fixed volume containing 24.78 grams of nitrogen gas and 12.388 grams…

A: Answer: Final Pressure = 0.755 atm and Final volume = 40.3 L

Q: A sample of N2 gas is contaminated with a gas (A) of unknown molar mass. The partial pressure of…

A: We have to predict molar mass of gas A.

Q: Ammonia is formed from nitrogen and hydrogen according to the following unbalanced equation N2 (g) +…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: What is the molar mass of the uranium fluoride?

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 gas at 43.67 K exerts a pressure of 1.56 atm. Calculate the final pressure if the…

A: Gay-Lussac's gives the relation between pressure and the temperature of the gas. Pressure is…

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: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A: The values are provided in questionTemperature T = 50°CTemperature T= 50+273K Temperature T = 323…

Q: Three glass bulbs, joined by closed stopcocks, have the following volumes and initial pressures of…

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: mixture of unreacted gas which consists of 21 g of nitrogen gas and 6 g of hydrogen gas is placed in…

Q: The rate of effusion of NO2 gas through a porous barrier is observed to be 5.28 x 10 mol/h. Under…

Q: A gaseous product has a mass of 2.34g and occupies a volume of 0.854 L.The temperature in the…

Question

A gas of unknown molecular mass was allowed to effuse
through a small opening under constant-pressure condi-
tions. It required 105 s for 1.0 L of the gas to effuse. Under
identical experimental conditions it required 31 s for 1.0 L
of O2 gas to effuse. Calculate the molar mass of the

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1 To Calculate

VIEW

Step 2 Concept

VIEW

Step 3 Formula used and calculations

VIEW

Step 4 Conclusion

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 1 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

0.200 g of aluminum reacts 854.0 ml of hydrogen sulphate gas at 30.0 o C and 123.0 kPa, calculate the mass ofaluminum sulphate produced. Hydrogen gas is produced in the reaction.
Click the "draw structure" button to launch the drawing utility. Hint Convert the following condensed formula into a Lewis structure (including all lone pair electrons). Solution CH;CH,COOH Guided Solut draw structuUre
To what temperature must a sample of nitrogen at 39.2oC and 0.511 atm be taken so that its pressure becomes 1.419 atm at constant volume? Enter C for unit.
A reaction occurs, producing an oxide of nitrogen as a gas. the gas has a mass of 1.211g and occupies a volume of 677mL. the tempurature is 23.0 degrees celcius and the air pressure is 0.987atm. calculate the molar mass of the gas, and the deduce the formula of the gas
Effusion is the process where a gas flows through a small hole in a container. Graham’s Law of Effusion says that the rate of effusion of a gas from a particular hole is inversely proportional to the square root of the MW of the gas (at constant temperature and pressure). Describe why normal balloons filled with He tend to go flat faster than the same balloons filled with air.
A sample of He gas is observed to effuse through a pourous barrier in 5.26 minutes. Under the same conditions, the same number of moles of an unknown gas requires 17.1 minutes to effuse through the same barrier. What is the molar mass of the unknown gas
ASK YOUR TEACHER A gas of unknown molar mass was allowed to effuse through a small opening under constant pressure conditions. It required 3650 s for 1.00 L of this gas to effuse. Under identical experimental conditions it required 471 s for 1.00 L of hydrogen (H2) 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; that is, rate and time are inversely proportional.) a) The molar mass is 0.3 g/mol.b) The molar mass is 15.6 g/mol.c) The molar mass is 0.7 g/mol.d) The molar mass is 121.1 g/mol.e) The molar mass is 5.6 g/mol.
An effusion container is filled with 2 L of an unknown gas. It takes 400 s for the gas to effuse into a vacuum. From the same container under the same conditions--same temperature and initial pressure, it takes 161 s for 2.00 L of O2 gas to effuse. Calculate the molar mass (in grams/mol) of the unknown gas.
1.115×10-4 mol of an unidentified gaseous substance effuses through a tiny hole in 79.9 s.Under identical conditions, 1.478×10-4 mol of argon gas takes 81.2 s to effuse.What is the molar mass of the unidentified substance (in g/mol)? The percentage C by mass in the above unidentified substance is 53.0%. It may also contain O.What is the molecular formula of the substance?(In typing this formula use the convention that C comes first.)
Constants | Periodic Table A gas of unknown molecular mass was allowed to effuse through a small opening under constant-pressure conditions. It required 105 s for 1.0 L of the gas to effuse. Under identical experimental conditions it required 29 s for 1.0 L of O2 gas to effuse. ▾ Part A 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.) Express your answer in grams per mol to two significant figures. M = Ο ΑΣΦ Submit Request Answer 3+ < Return to Assignment Provide Feedback a % ? g/mol MacBook Pro 曲 C
[References) Use the References to access important values if needed for this question. According to the ideal gas law, a 0.9550 mol sample of carbon dioxide gas in a 1.558 L container at 268.2 K should exert a pressure of 13.49 atm. What is the percent difference between the pressure calculated using the van der Waal equation and the ideal pressure? For CO, gas, a = 3.592 L2atm/mol? and b = 4.267x10-2 L/mol. Pideal - Puan der Waols Peal +Pean der Wade Percent difference = x 100
A cylinder containing 244.1 cubic centimeter of gas at a pressure of 307 kPa when its temperature is 549 K. Given that its volume is unchanged when the pressure was increased by a factor of 5, Determine the new Temperature of the gas (In Kelvin).