A 1.00 L flask is filled with 2.00 mol Ar, 2.00 mol H2 and 4.00 mol Kr. Which of the following statements about these gases is false? Kr is the densest of the three gases. The total pressure in the flask is four times the pressure of Ar. The mole fraction of Ar is 0.250. Kr has the highest rms speed of the three gases,

Q: A gas mixture contains 75.2% nitrogen and 24.8% krypton by mass. What is the partial pressure of…

A: Given data- A gas mixture contains- Nitrogen =75.2% krypton =24.8%  total pressure is 745 mmHg.

Q: A sample of a gas mixture contains the following quantities of three gases.   compound mass CO…

A:

Q: A 270-mL flask contains pure helium at a pressure of 756 torr . A second flask with a volume of 465…

A: We need to calculate: A) the partial pressures of helium after mixing, B) the partial pressure of…

Q: A 2.55 g sample of an unknown gas at 31 ∘C and 1.05 atm is stored in a 2.85 L flask. What is the…

A: First the density is determined by using density formula as shown below,

Q: A 285-mL flask contains pure helium at a pressure of 743 torr A second flask with a volume of 470 mL…

A:

Q: Which of the following statements does not agree with the kinetic theory of gases? * Gas particles…

A: Given statements,    Gas particles are spaced far apart from each other.    Gas particles are in…

Q: What law is derived from the combined gas law under constant temperature and moles? O 1)…

A: Given condition is constant temperature and moles To find, which among the below gas law is based on…

Q: A 7.45 L container holds a mixture of two gases at 41 °C. The partial pressures of gas A and gas B,…

A: We know that from Dalton's law of partial pressure, total pressure of a gas is the sum of individual…

Q: 1.10 g of Carbon dioxide were introduced into a 1.00 L flask which contained some pure oxygen (O2)…

A: Given : mass of CO2 introduced = 1.10 g Since molar mass of CO2 = 44 g/mol Hence moles of CO2…

Q: A gaseous mixture of O2 and N2 contains 38.8 %% nitrogen by mass. What is the partial pressure

A: Assume Total mixture = 100 g  Mass of N2 = 38.8 g  Moles of N2 = 38.8 g/ 28 g/mol  = 1.38mol Mass…

Q: 4. Arrange the following gases based on increasing average speed. (He, Ne, Ar, Kr, Xe). 5. If one…

A: According to kinetic molecular theory, the average speed of the gases is given as,…

Q: A 275-mL flask contains pure helium at a pressure of 746 torr. A second flask with a volume of 475…

A: Total volume after the stopcock is opened. The total volume is 275 ml + 475 ml = 750 ml. Since the…

Q: A mixture of gases contains 319 torr N₂, 270 torr O₂, and 287 torr Ar. What is the total pressure of…

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Q: A container with volume 1.48 L is initially evacuated. Then it is filled with 0.226 g of N2+. Assume…

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Q: A mixture of gases containing 0.362 moles of oxygen, 1.23 moles of nitrogen, and 0.0234 moles of…

A: Given: moles of O2 = 0.362 mol moles of N2 = 1.23 mol moles of Ar = 0.0234 mol Total pressure = 2.60…

Q: A collapsed balloon is filled with He to a volume of 12.5 L at a pressure of 1.00 atm. Oxygen, O2,…

A: Given : volume of He filled = 12.5 L  pressure of He to which it was filled = 1.00 atm  Temperature…

Q: A 3.55 g sample of an unknown gas at 59 °C and 1.05 atm is stored in a 1.05 L flask. What is the…

A: a) Since mass of gas is given = 3.55 g  and volume of gas = volume of flask = 1.05 L hence density…

Q: Gas A and gas B are combined in a flask at initial pressures of 1.0 atm each. The flask is sealed…

A: The pressure of a gas depends on the number of particles of the gas and it does not depend on the…

Q: 10. You have two separate containers each filled with a gas. The containers have the same volume and…

A: Given the pressure(P), volume(V) and temperature(T) are the same for both the containers (balloons).

Q: Components of Air Mole Fraction Nitrogen 0.781 Окудеn 0.209 Argon 0.010 What is the partial pressure…

A: In a mixture of different gases having total pressure PT, the partial pressure of each gas Pi is…

Q: A gas mixture contains each of the following gases at the indicated partial pressures: N2, 215 torr;…

A: In this question, we have given partial pressures of the following gases : Pressure of N2 gas = 215…

Q: If equal masses of O2(g) and HBr(g) are in separate containers of equal volume and temperature,…

A: The ideal gas equation is written as follows:PV = nRTSince there are an equal volume and temperature…

Q: A mixture of three gases has a total pressure of 1380. mm Hg at 298 K. The mixture is analyzed and…

A: Given :  total pressure = 1380 mm Hg  number of moles of CO2 = 1.27 mol  number of moles of CO =…

Q: A gas mixture is made by combining 8.5 g8.5 g each of Ar,Ar, Ne,Ne, and an unknown diatomic gas. At…

A: According to ideal gas law PV = nRT where P = pressure V = volume n = moles R = gas constant =…

Q: A 1.95 g sample of an unknown gas at 67 °C and 1.05 atm is stored in a 2.05 L flask. What is the…

A: The molar mass of a chemical compound is defined as the mass of a sample of that compound divided by…

Q: A gas at 89C occupies a volume of 0.67 L. At what temperature will the volume increase to 1.12 L?…

A: Given information, Initial volume (V1) = 0.67 L Initial temperature (T1) = 89 deg C = 362 K Final…

Q: A 8.35 L container holds a mixture of two gases at 21 °C. The partial pressures of gas A and gas B,…

A: Pressure of third gas (C)can be determined using Ideal gas Equation as follows,

Q: Two gases, X and Y, react together to form Z as described by the following chemical reaction:…

A: In this question we have to use the ideal gas equation, i.e       PV = nRT  P is pressure , V is…

Q: 1. A gas mixture contains each of the following gases at the indicated partial pressures: N2, 226…

A: Given :-  PN2 = 226 torr  PO2 = 122 torr  PHe = 107 torr  Volume = 1.50 L  Temperature = 25°C  To…

Q: The partial pressure of fluorine gas in a 2.00 L container is 0.85 atm while the partial pressure in…

A: The equation which is related to "P" (pressure in atm), "V" (volume in liter), "n" (moles), "R" (gas…

Q: A 1.95 g sample of an unknown gas at 61 ∘C and 1.00 atm is stored in a 1.45 L flask. What is the…

A: Given information:Mass of sample = 1.95 gTemperature = 61 °CPressure of gas = 1.00 atmVolume of…

Q: There are two separate closed vessels with equal volume, the first one has H2 gas at 27 °C and the…

A: PV = nRT  P1 = P2, V1 = V2 P1V1 = P2V2 n1RT1 = n2RT2 Molecular weight of H2 = 2g Temperature of…

Q: If a gaseous mixture is made by combining 1.16 g Ar and 2.45 g Kr in an evacuated 2.50 L container…

A:

Q: A 1.25 g sample of an unknown gas at 81 °C and 1.00 atm is stored in a 1.05 L flask. What is the…

A: Given, mass of unknown gas sample m = 1.25 g            temperature T = 81 °C = 81+ 273 K = 354 K…

Q: partial pressure

A:

Q: A 2.35 g sample of an unknown gas at 51 °C and 1.05 atm is stored in a 1.35 L flask. What is the…

A: Given, mass of a unknown gas sample (m) = 2.35 g Temperature (T) = 51°C = (51 + 273.15) K = 324.15 K…

Q: A 9.10 L container holds a mixture of two gases at 27 °C. The partial pressures of gas A and gas B,…

A:

Q: Under the same conditions of temperature and pressure, rank the following gases in terms of…

A: Interpretation - To rank the following gases in terms of increasing ideal gas behavior. Ne,N2,CH4

Q: The total pressure exerted by a mixture of O2, N2, and He gases is 1.50 atm. What is the partial…

A: Given: The total pressure exerted by a mixture of O2, N2, and He = 1.50 atm The partial pressure of…

Q: A 7.90 L container holds a mixture of two gases at 13 °C. The partial pressures of gas A and gas B,…

A: The pressure of third gas can be calculated as follows:

Q: A 3.35 g sample of an unknown gas at 23 'C and 1.10 atm is stored in a 3.05 L flask. What is the…

A:

Q: Three gases (CO2, 02, and N) are trapped in individual bulbs of difterent volumes below. When the…

A:

Q: Consider three 1.0 L flasks labeled A, B, and C filled with the gases NO, NO2, and N2O,…

A: There are there states of matter. Solid, liquid and gas. Gas is less dense than solid and liquid.

Q: Two gas tanks contain different gases. The pressure, volume, and temperature of eacn gas are shown…

A: Factors affecting the pressure of the gas: Volume- If the volume inside the container is decreased…

Q: 4 NH3 (g) + 5 O2 (g) = 4 NO (g) + 6 H2O (g)A sample of NH3 is added to an initially evacuated 2.00 L…

A: Given dataPartial pressure of NH3= 415torrPartial pressure of O2 = (875-415) torr…

Q: Two separate flasks are each filled with a gas at 25.0°C; the valve between them is opened and the…

A:

Q: A 1.85 g sample of an unknown gas at 47 °C and 1.00 atm is stored in a 2.85 L flask. What is the…

A: Given: Mass, m =1.85 g Volume , V =2.85 L Pressure, P = 1.00 atm Temperature, T = 47 +273 = 320 K…

Q: Consider four 1.0 L flasks of gases at STP, Flask A contains NO gas, Flask B contains NH3 gas, Flask…

A:

Q: A sample of Chlorine, Cl2, was found to effuse through a pinhole 1.25 times as rapidly as the same…

A:

Q: A 2.65 g sample of an unknown gas at 21 °C and 1.10 atm is stored in a 1.05 L flask. What is the…

A:

Q: n 9 of 10 Three samples of an ideal gas, all at the same temperature, occupy identical containers…

A: The ideal gas equation is  PV=nRT, where P is pressure, V is volume, n is number of mole, R is…

Q: A gas mixture contains each of these gases at the indicated partial pressures: N2, 215 torr; O2, 102…

A: Dalton's law state that the total pressure of a mixture of gases is equal to the sum of the partial…

Q: A gas mixture contains each of the following gases at the indicated partial pressures: N2, 236 torr…

A:

Q: A 1.05 g sample of an unknown gas at 61 "C and 1.05 atm is stored in a 2.55 L flask. What is the…

A: Mass per unit volume is known as density. S.I unit of density is g/cm3 or kg/m3. Other units of…

Q: A mixture of neon and nitrogen gases, at a total pressure of 889 mm Hg, contains 3.54 grams of neon…

A:

Q: According to Dalton, the pressure exerted by a gas inside a container is proportional to the number…

A: As ,the pressure exerted by a gas inside a container is proportional to the number of molecules of…

Q: The gas from a certain volcano had the following composition in mole percent: 65% CO2, 25% H2, 5.4%…

A: According to Dalton's law of partial pressure the total pressure of a gaseous mixture is the sum…

Q: A 91.4 L glass bulb has a total pressure of 760 torr at 0 C and contains three different gases,…

A: Ideal gas equation: The temperature, pressure, volume, and mole of the gas are related to the ideal…

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.