The average kinetic energy of the molecules in a gas sample depends only on the temperature, ?. However, given the same kinetic energies, a lighter molecule will move faster than a heavier molecule, as shown in the equation for rms speed   rms speed=3??ℳ‾‾‾‾‾√     where ?=8.314 J/(mol⋅K) and ℳ is molar mass in kilograms per mole. Note that a joule is the same as a kilogram‑meter squared per second squared (kg·m2/s2). What is the rms speed of F2 molecules at 375 K? What is the rms speed? What is the rms speed of He atoms at 375 k?

Q: pressure: 708.1 mm Hg volume: 2.965 L temperature: 25.5°C How many moles of CO2 were produced?

A: Answer:- Given data:- Pressure = 708.1 mm Hg = 0.93171066 atm…

Q: Some commercial drain cleaners use a mixture of sodium hydroxide and aluminum powder. When the solid…

A: Calculation of moles of Al: Number of mols of Aluminium =Weight of aluminium in gAtomic weight of…

Q: What volume of hydrogen gas is produced when 8.82 g of sodium reacts completely according to the…

A: Given,  sodium (s) + water(l) -----> sodium hydroxide (aq) + hydrogen(g)  The mass of sodium =…

Q: Some commercial drain cleaners contain two components; sodium hydroxide and aluminum powder. When…

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Q: Describe in your own words, the contributions of each of the following scientists with respect to…

A: Boyle's law:  At constant temperature and for a fixed amount of an ideal gas, pressure of the gas is…

Q: The average kinetic energy of the molecules in a gas sample depends only on the temperature, T.…

A: The equation for rms speed is given as :

Q: The average kinetic energy of the molecules in a gas sample depends only on the temperature, ?.…

A: The root-mean square speed (vrms) for F2 molecules can be calculated using equation (1). In this…

Q: Iron ore is reduced to pure iron by smelting, during which the iron (III) oxide in the ore reacts…

A:

Q: A 36.0–L cylinder of a gas used for calibration of blood gas analyzers in medical laboratories…

A: Room temperature  = 25° C Moles = weight in gram / molecular mass Moles of CO2 = 350 / 44 = 7.95…

Q: Equal amounts of gas samples of neon, argon, and krypton are all placed in separate rigid 50-ml…

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Q: For many purposes we can treat ammonia (NH,) as an ideal gas at temp Suppose the temperature of a…

A: To solve this problem we will use the combined gas law .  Which is given as  P1V1/T1 = P2V2/T2

Q: 4. How is the Kelvin temperature of a substance related to the average kinetic energy of its…

A: Average kinetic energy is defined as the average of all the kinetic energies of the particles…

Q: 5. An experiment is performed to measure the mass percent of Caco,(s) in eggshells. Five different…

A: The extent of reaction is studied with help of the Le Chatelier principle. According to this if…

Q: 8. What happens to the average kinetic energy (speed) of the particles in a sample of matter as the…

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Q: The zinc within a copper-plated penny will dissolve in hydrochloric acid if the copper coating is…

A: Given:Volume = 0.957 L.Temperature = 25oC = 298 KTotal Pressure = 758 mmHg.

Q: How fast will nitrogen gas travel if carbon dioxide moves at a rate of 9.56 x 1026 molecules per…

A: According to Graham’s law, if a mixture contains two gases, then the rate of effusion at constant…

Q: Which of the following expressions is incorrect? a. A = log(96T) O b.A = -log(1/l,) O C. A = Elc +…

A: Absorbance of a solution is equal to the product of molar absorptivity coefficient (∈) concentration…

Q: the average oxygen content of arterial blood is approximately 0.25 g of O2 per ltre. assuming a body…

A: The amount of oxygen dissolved in 1 L of blood is 0.25 g. The body temperature is 37°C.

Q: Most of the sulfur used in'the United States is chemically synthesized from hydrogen sulfide gas…

A:

Q: Which is greater -- the average speed or the most-probable speed? Explain why this is the case

A: Answer:- This question is answered by using the simple concept of calculation of average speed and…

Q: 1. Write a balanced chemical equation, including physical state symbols, for the decomposition of…

A: A chemical equation is said to balanced if the number of atoms of each element or compound is same…

Q: The average life expectancy in the United States is 78.7 years. Assuming there are 365.25 days in a…

A: Given that , average life expectancy of US is 78.7 years  And given  1 year = 365.25 days  Complete…

Q: Match the unit with the quantity it measures: mmHg cL k g mm match the above unites the…

A: The given quantities are matched with their unit in the table in the next step.

Q: What volume of hydrogen gas is produced when 6.97 g of iron reacts completely according to the…

A: Given  Reaction  Iron(s)  +  Hydrochloric acid(aq)  →  Iron ( II ) chloride(aq)  + Hydrogen(g) Mass…

Q: the heavy gas particles took twice as long to diffuse as the light gas particles. This means that…

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Q: . Chlorine dioxide (ClO2) is used for bleaching wood pulp.In a gaseous sample held at thermal…

A: Given : 35 % of the molecules have speed of more than 400 m/s. And temperature of the molecules is…

Q: In any of the equation forms for the Ideal Gas Law, IGL, volume must be in what units?  a mL  b…

A: The ideal gas law is, PV=nRT where, P, V, and T are pressure, volume, temperature, n is the amount…

Q: Calculate urms, in meters per second, for H2(g) molecules at 30 ∘C.

A: Root Mean Square speed (RMS) is the measure of the speed of the particles present in the gas…

Q: es relative to the average kinetic energy of hydrogen

A: Relation is : Average kinetics energy ( K ) = ( 3 / 2 ) RT  According to this Relation, Average…

Q: 1. Write a balanced chemical equation, including physical state symbols, for the decomposition of…

A:

Q: Calculate the density in g/L of fluorine gasat 23.6oC and 0.988atm?

A: Given that : Temperature (T) = 23.6°C = 296.6 K Pressure (P) = 0.988 atm The molar mass of fluorine…

Q: V, 5. What is the new volume of a gas if a 5.0 L sample of gas is heated from an initial temperature…

A: charls law: This law describes how a gas expands as the temperature increases; conversely, a…

Q: Which travel faster, CO2 or N2? Explain your answer assuming the process is constant pressure and…

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Q: 49.2 L sample of nitrogen gas experiences a change in pressure from 101.1 kPa to 90.3 kPa. What is…

A: Pressure of the gas is inversely proportional to its volume as stated in Boyle's law. Pα 1V P1V1 =…

Q: What volume of nitrogen monoxide is required to react with 125 liters of hydrogen gas according to…

A: Given that, Volume of H2 = 125 L  Volume of NO= ?

Q: Iron ore is reduced to pure iron by smelting, during which the iron (III) oxide in the ore reacts…

A: Reaction rates are the temperature and concentration dependent quantity. They are estimated in M/s…

Q: air is analyzed 5, followed by cal analysis. the various s in the sample, - pollutants is pund.…

A: Answer - The correct option is (d) Solution - According to the question - Given - Molecular mass of…

Q: The average kinetic energy of the molecules in a gas sample depends only on the temperature, T.…

A:

Q: The average kinetic energy of the molecules in a gas sample depends only on the temperature, T.…

A: Vrms is the  square root of the average of  the square of the speeds. Vrms speed: it is given by the…

Q: If the average kinetic energy of the molecules in an ideal gas initially at 28°C doubles, what is…

A: Initial Temperature = 28°C or 301 K

Q: The student realized that they did not dissolve all of the magnesium in the reaction and had to redo…

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Q: What would happen to the average kinetic energy of the molecules of a gas sample if the temperature…

A: Applying formula of average kinetic energy Ek= 3/2KBT

Q: In 1897 the Swedish explorer Andree tried to reach the North Pole in a balloon. The balloon was…

A: The given data contains, Volume =4800 m3V=4.8×106 LTemperature T=273 KPressure=1 atm

Q: A moture of gaseous reactants is put nto a cyinder, where a chemical reaction turns them nto gaseous…

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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: Ammonium chloride and calcium hydroxide can react. The ammonia that is released in the reaction is…

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Q: Most of the sulfur used in the United States is chemically synthesized from hydrogen sulfide gas…

A: Given : hydrogen sulfide reacts with dioxygen to produce water and sulfur dioxide. flow rate of…

Q: Water has a density of 0.96 g mL- at its boiling point of 100 °C under standard atmo- spheric…

A: Density = MassVolume So, Density ∝1V

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.