At a certain temperature, the speed of six gaseous molecules in a container are 2.0 m/s, 2.2 m/s, 2.6 m/s, 2.7 m/s, 3.3 m/s, and 3.5 m/s. Calculate the root-mean-square speed and average speed of the molecules. These two average values are to each other, but the root-mean-square value is always the larger of the two. Why?

Q: A sample of hydrogen gas was collected by displacement of water in a large gas buret. The total…

A: Given, Total pressure = 764.2torr. Temperature = 23.0oC. Volume of gas = 511mL. Vapor pressure of…

Q: Two vessels are labeled A and B. Vessel A contains NH3 gas at 86°C, and vessel B contains Ne gas at…

A:

Q: Which of the three gases will have the highest root-mean-square speed? UF6 F2 NF3 The three gases…

A: 1. Highest root-mean-sqaure speed: Therefore, the highest root-mean-sqaure speed is F2 gas. Correct…

Q: A mixture of calcium carbonate, CaCO3, and barium carbonate, BaCO3, weighing 5.40 g reacts fully…

A:

Q: Gas Z was collected over water at 21°C on a day when atmospheric pressure was 757 torr. The volume…

A: The pressure in the collection tube is due to water vapor and the gas Z. Since, the total pressure…

Q: A container with volume 0.2 m² contains of 2.5 moles of oxygen gas. Given that the molar mass of…

A:

Q: elium atoms have a mass of 4u4u and oxygen molecules have a mass of 32u32u, where uuu is defined as…

A: To find the temperature at which the root mean square speed of a helium atom equals the root mean…

Q: A mixture containing 0.765 mol He (g), 0.330 mol Ne (g), and 0.110 mol Ar (g) is confined in a…

A: (a)Add all the moles of gases present in 10.00 L vessel and find the total moles.

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: The root-mean-square speed of CO at 121.7 °C is m/s.

A: We know the root mean square(r.m.s.) speed of a gaseous molecule is given as-

Q: The volume of a sample of pure HCI gas was 239 mL at 24°C and 177 mmHg. It was completely dissolved…

A: Given that, Volume of HCl gas =239mL = 0.239LPressure  P = 177 mmHg *                     = 0.233…

Q: At what temperature does the speed of carbon dioxide molecules, CO2, equal 350.0 m/sec?

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Q: In our campus, there are approximately 30.000 students use 2.5 x 109 kJ of energy per day. Suppose…

A: Giveln Pressure = 9186 torr = 9186/760 atm 5.059 g CO2(g), 3.106 g H2O(l) Volume = 580ml = 0.58L…

Q: In the hot gases of an automotive engine's cylinders, temperatures may exceed 1142 K (degrees…

A: the "root mean square" or "rms" velocity of the hydrogen atom is given below

Q: 3 RT rms speed where R = 8.314 J/(mol·K) and M is molar mass in kilograms per mole. Note that a…

A: Molar mass of nitrogen gas = 28 g/mol Temperature of nitrogen gas = 435 K The Vrms of nitrogen gas…

Q: Two vessels are labeled A and B. Vessel A contains NH3 gas at 74°C, and vessel B contains Ne gas at…

A: The root mean square speed can be calculated as,

Q: alculate molar mass (g/mol) of an unknown gas if its root-mean-square speed is 3.61 x 102 m/s at 20…

A: Given: The root-mean-square speed, Urms =3.61 x 102 m/s Temperature,T= 20°C Temperature,T= 20+…

Q: A container holds SF6 gas at a temperature of 70.0°C. Calculate the quantities below in the…

A: Answer:Here:

Q: moles

A:

Q: Consider two 1-L samples of gas: one is H₂ and the other is O₂. Both are at 1 atm and 25°C. How do…

A: Since you have asked multiple sub-parts, we will solve the first three sub-parts. To get the answer…

Q: You start with an equimolar mixture of the gases SO, and O, in a container. The SO, and O, react to…

A:

Q: A certain amount of chlorine gas was placed inside a cylinder with a movable piston at one end. The…

A: Given that: Initial volume of gas = 3.00 LFinal volume of gas = 1.00 LInitial pressure of gas = 1.25…

Q: Compare the average kinetic energies, and the root-mean-square speeds of three gasses: Neon (Ne),…

A: Temperature is a measure of the average kinetic energy of the particles in an object.

Q: Suppose a sample of refrigerant gas consisting of a simple mixture of the gases C2HF5 and CH2F2 has…

A: Given: Density of mixture = 1.92 g/L. Pressure of mixture = 0.625 atm. Temperature = 31 oC And the…

Q: c) This relationship is known as Graham's Law of Effusion. Since both gases are at te same…

A: Given, molar mass of heavier gas =mH molar mass of lighter gas = mL Velocity of heavier gas = VL…

Q: A 2.00 L gas bulb contains 4.07 x 1023 N2 molecules. The pressure is 3.05 atm and the…

A: Ideal gas, law can be written as,  PV = nRT Where,  P = pressure of gas V = volume of gas n = moles…

Q: Calculate the root mean square (rms) average speed of the atoms in a sample of neon gas at  0.15 atm…

A: Given,pressure of neon ( Ne ) gas = 0.15 atmtemperature = -95. oC

Q: Calculate the root mean square (rms) average speed of the atoms in a sample of xenon gas at  0.13…

A: The root mean square (rms) of the atoms in a sample of xenon gas  is given by the average speed of…

Q: A sample of magnesium metal reacts completely with an excess of hydrocholoric acid: Mg(s) + 2…

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Q: The hydrogen gas evolved in a reaction between solid zinc and hydrochloric acid has been collected…

A: Given :-  Volume of displaced water by gas = 0.587 L  Temperature = 30.0°C  Pressure = 738 torr  To…

Q: You collect a sample of hydrogen gas in an inverted buret by displacement of water at 25.2oC. The…

A: VH2= 30.26mL Patm =29.6111 Hg

Q: Calculate the root-mean-square (rms) speed (in m/s) of propane (C3H8) gas molecules at a temperature…

A: The root mean square speed is calculated by the formula: v=3RTMwhere, R is the universal gas…

Q: This relationship is known as Graham’s Law of Effusion. Since both gases are at the same…

A: Given Data: mLmH=vHvL2 vHvL=12 Molar Mass of light gas (Neon) = 20 g/mol

Q: Air is about 78.0% nitrogen molecules and 21.0% oxygen molecules. Several other gases make up the…

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.