A sample of neon of mass 425 mg occupies 6.00 dm3 at 77 K. What pressure does it exert?

Q: What volume of oxygen at 423.0 K and a pressure of 127.4 kPa is produced by the decomposition of…

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Q: How many grams of carbon must have been present if 5.186 dm3 of carbon monoxide was produced at…

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Q: Compare the pressures predicted for 0.8 dm3 of Cl2 weighing 17.5 g at 273.15 K using (a) the ideal…

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Q: Sulfur dioxide is an intermediate in the preparation of sulfuric acid. What volume of SO2 at 343 °C…

A: The balanced chemical equation for the reaction is: Thus, 1 mole of S gives 1 mole of SO2.

Q: equal volumes of ammonia (NH3) and ozone (O3), at the same pressure and temperature that they have?

A: We know that for gasses  PV = nRT  n = PV/RT

Q: 2. At what temperature will 0.84 moles of neon gas occupy 120 cm' at 1 atmosphere?

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Q: At what temperature will molecules of oxygen have the same root-mean-square velocity as molecules of…

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Q: What is the density of oxygen gas at 25 degree C and 120 kPa?

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Q: At what temperature with 1.45 moles of neon gas occupy 10.99 litres at 2.00 atmospheres?

A: Given  Number of mole of Neon Gas ( n ) = 1.45 mole  Volume ( V )         = 10.99 Liter  Pressure (…

Q: To what temperature, in oC ,  must a 20.2 g sample of hydrogen gas be heated to, at 136 kPa, to…

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Q: What must be the new volume of a sample of nitrogen (in L) if 2.68 L at 745 torr and 24.00C is…

A: Given,Volume of nitrogen sample (V1) = 2.68L.Pressure (P1) = 745torr.Temperature (T1) =…

Q: What volume does 0.118 mol of helium gas at a pressure of0.97 atm and a temperature of 305 K occupy?…

A: For He gas : Ideal gas equation : PV = nRT 0.97 x V = 0.118 x 0.0821 x 305  V = 3.046 L For Ar gas :…

Q: if you have 23.5 kPa of oxygen, 15.3 kPa of nitrogen and helium in a container with a total pressure…

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Q: A sample of 1.00 moles of oxygen at 50℃ and 98.6 kPa occupies what volume?

A: According to ideal gas law, PV = nRT where P = pressure in atm = pressure in KPa / 101.325 = 98.6 /…

Q: (ii) What is the partial pressure of oxygen and nitrogen (in kPa) if they are present at 6.42 mol/m3…

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Q: What is the root mean square speed (in m/s) of nitrogen at 26.3oC?

A: Given, Molecule  = nitrogen  (N2) Temperature = 26.3 °C =(26.3+273)K = 299.3 K

Q: At what pressure does the mean free path of argon at 20 °C become comparable to 10 times the…

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Q: What is the pressure in atmospheres of 2.50 L of 1.5 moles of hydrogen at 230.0 K?

A: Given data,   Volume of hydrogen (V) = 2.50 L   Number of moles of hydrogen (n) = 1.5 moles…

Q: What is the temperature of 0.300 mole of neon in a 2.00 L vessel at 4.68 atm?

A: We will use Idea Gas Equation to solve this problem PV = nRT   where. P = Pressure in atm V = Volume…

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: 10.000 grams of zinc metal are placed into a flask containing 100.0 mL of 3.00 M hydrochloric acid.…

A: A numerical problem based on stoichiometry, which is to be accomplished.

Q: What is the density of N2O5 under standard temperature and pressure conditions, in g/L?

A: At standard pressure and temperature, volume of one mole of gas is 22.4 L.

Q: A 0.479 g sample of nitrogen, oxygen or neon gas occupies a volume of 265 mL at 157 kPa and 20◦C.…

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Q: Calculate the diameter and the mean free path of argon atoms if the number of collisions made by a…

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Q: At what temperature would 2.10 mol N₂ exert 126.65 kPa of pressure in a 25.0 L tank?

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Q: Cavendish prepared hydrogen in 1766 by the novel method of passing steam through a red-hot gun…

A: The given balanced equation is 4 H2O (g) + 3 Fe (s) ⟶ Fe3O4 (s) + 4 H2 (g) Now, convert the mass of…

Q: At what temperature will 15.2 grams of helium exert a pressure of 10.0 atm when confined in a…

A: Ideal Gas Law :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas n is the…

Q: On a single plot, qualitatively sketch the distribution ofmolecular speeds for (a) Kr(g) at -50 °C,…

A: The average velocity and root mean square velocity of gas molecules for a gas of molar mass M at…

Q: What property of molecules of real gases is indicated by van der waal’s constant ‘a’?

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Q: A chemist is investigating the conversion of atmospheric nitrogen to usable form by the bacteria…

A: Given information,    1.25 g of nitrogen gas in a flask of volume 250 mL at 20 °C.         moles of…

Q: flask containing 137 cm3 of hydrogen was collected under a pressure of 22 kPa. What pressure would…

A: Boyle's law : According to Boyle's law, At constant temperature, Pressure varies inversely with the…

Q: 1.1(a) (a) Could 131 g of xenon gas in a vessel of volume 1.0 dm³ exert a pressure of 20 atm at 25°C…

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Q: 4. If you have 200. molecules at 300. K and a "volume" of 10 nm, what is the pressure?

A: Note- There is very little correction is that the unit of volume is - nm^3 or can say nm3 , so I…

Q: How can we calculate the root mean square velocity of gaseous xenon atoms at 25 °C?

A: Root mean square velocity Root mean square velocity is directly proportional to square root of…

Q: 1. A vessel of volume 22.4 L contains 2.0 mol H2 and 1.0 mol N2 at 273.15 K. All the H2 that could…

A: Given, volume of the vessel = 22.4L Number of moles of H2 that reacts = 2.0 mol Number of moles of…

Q: What is the average (rms) speed (in m/s) of a neon atom at 26.0 °C?

A: From the kinetic theory of gases, the average (rms) speed of a gas is given by: μrms = 3RTM where,…

Q: 1. (a) Could 131 g of xenon gas in a vessel of volume 1.0 dm 3 exert a pressure of 20 atm at 25°C if…

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Q: A sample of nitrogen has a volume of 4.12 L at 1,591 mmHg and 193 Celsius. What volume will it…

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Q: Since the value of the van der Waals constant b for argon is 0.0322 dm3 / mol, what is the radius of…

A: Given , vander waals constant, b = 0.0322 dm3/mol = 3.22 x 10-5 m3/mol  Radius of Ar atom ,r  = ?

Q: What must be the new volume of a sample of nitrogen (in L) if 2.89 L at 742 torr and 23.6 °C is…

A: The final volume of the gas can be measured by using the combined gas law. The combined gas law is:…

Q: What volume of water vapour (in L) will be produced during the production 178 L of hydrogen cyanide?…

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Q: What volume would 20.0g of CO2 occupy at a temperature of 25 °C and a pressure of 105 kPa?

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Q: What pressure would 4.56 g of nitrogen gas in a vessel of volume 2.25 dm3 exert at 273 K if it…

A: Given that: Mass of nitrogen gas = 4.56g Molar mass of nitrogen gas =28g/mol Volume = 2.25 dm3 =…

Q: At what pressure does the mean free path of Argon at 298 K become comparable to the size of a 1.000…

A: Given data,Temperature=298KDiameter=0.339nmwe know,1 nm=10-9mtherefore,0.339nm=0.339×10-9m

Q: A sample of Carbon dioxide occupies a volume of 3.50 Liters at 125 kPa pressure. What pressure would…

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Q: Since the value of the van der Waals constant b for argon is 0.0322 dm3 / mol, what is the radius of…

A: Given that: b = 0.0322 dm3 / mol                        = 0.0322  x 10-3 m3 / mol…

Q: Calculate the root-mean-square speed of Ne atoms at the temperature at which their average kinetic…

A: Given :-  Average kinetic energy of Ne = K = 4.33 kJ/mol = 4330 J/mol  Root mean square speed of Ne…

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.