A 0.479 g sample of nitrogen, oxygen or neon gas occupies a volume of 265 mL at 157 kPa and 20°C. What is the molar mass and iden- tity of the gas?

Q: An empty gas syringe weighed 58.63. When it was filled with 60.0 cm3 of an unknown gas at 100 kPa…

A: The effect of pressure and temperature is measured by Boyle’s law and Charles's law respectively.…

Q: What volume would 1 mole of an ideal gas occupy at 250C and 101.325 kPa?

A: The ideal gas equation - P V = n R T here,  P is the pressure of the ideal gas in atmospheres. V is…

Q: Q4// A-Aclosed container of volume 0.02m contains a mixture of neon and argon at tempreture 27°c and…

A: Volume = 0.02 m3  Pressure = 1 × 105 Nm-2 Temperature = 27°C = 27 + 273 = 300 K  Total mass of gases…

Q: How many moles of SO_2 gas are contained in a 4.7 L container at 450 K and 5.00 kPa?

A: Given,  Temperature = 450 K Volume of SO2 gas = 4.7 L Pressure = 5.00 kPa 1 atm = 101.3 kpa 5.00 Kpa…

Q: n²a In the van der Waals equation, (P +) (v – nb) = nRT, explain why a term is added to %3D the…

A: Since you have posted multiple unrelated questions, we are entitled to answer the first only. a)…

Q: A 0.117 g sample of a diatomic gas occupies 41.5 mL at 24.9 ºC and 98.4 kPa. Identify the gas.

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Q: At what temperature will 12.00g of Cl2 exert a pressure of 754.4 kPa at a volume of 752 mL?

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Q: Assume that a spherical balloon is filled with Hydrogen gas, H2, until its radius is 1.00 m at 25oC…

A: We are given  radius of ballon =1 mtemperature =25°CPressure =101 kPa

Q: What is the molar mass of a gas if a 0.227 g sample occupies 135 mL at 25 *C and 68.5 kPa? *

A: Ans is 60.81g/mol

Q: The pressure P, volume V, and temperature T of a van der Waals gas with n molecules (n constant) are…

A: VAN DER WAALS EQUATION: The Van der Waals equation for the real gases is given in the question. This…

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

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Q: Calculate the number of moles of Argon gas contained in a 4.00 dm3 container at 620. kPa and 25.0…

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Q: You fill a rigid steel container with a volume of 20 L with nitrogen gas to a pressure of 2000 kpa…

A:

Q: The volume of a sample of helium is 4.5ml at 20C and 203kpa, what will its volume be at 10C and…

A: Given data,Initial volume(V1)=4.5mL=0.0045LInitial Temperature(T1)=20oC=293KFinal volume(V2)=?Final…

Q: Until an economical way of extracting oxygen from sea water or lunar rocks is found, it has to be…

A: Boyle's law states that at constant temperature, the volume of gas is inversely related to pressure…

Q: A containing 138 cm ^ 3 of hydrogen was collected under a pressure of 25.6 kPa What pressure would…

A:

Q: Nitrogen gas under an initial pressure of 5.0×106 Pa at 15 ºC is contained in a cylinder of volume…

A: Given, Nitrogen gas under an initial pressure of 5.0×106 Pa at 15 ºC iscontained in a cylinder of…

Q: what is the temperature in Kelvin of 1.15 moles of hydrogen in a 15 L container at 185 kPa?

A:

Q: A container of volume of 100.4 dm3 contains 3.5 mol Cl2 and 4.5 mol O2 at 273.15K. Calculate the…

A: Number of moles of Cl2 = 3.5 mol  Number of moles of O2 = 4.5 mol  Mole fraction of O2 gas = ?

Q: All ideal gases have the same density at 25°C and 1 bar. Is it true or false?

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Q: Estimate the molar volume of CO2 at 500 K and 100 atm by treating it as a van der Waals gas? a =…

A: Given pressure = 100 atm  Temperature = 500K  a= 3.610 dm⁶atm/mol²  b = 4.29×10-² dm³/mol  We have…

Q: When hydrogen iodide gas is associated into hydrogen and iodine gases, at temperature of 698.8 K at…

A: When hydrogen iodide gas is associated into hydrogen and iodine gases, at temperature of 698.8 K at…

Q: At s.t.p the volume of a sample of air is 5.00 dm3 . If the mole fraction oxygen gas in the sample…

A: Given- Volume of sample = 5.00 dm3 Mole fraction of oxygen gas in sample = 0.25 To find = mass of…

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

A:

Q: What is the molar mass of a gas if a 0.227 g sample occupies 135 mL at 25 °C and 68.5 kPa?

A:

Q: O2 (g) effuses at a rate that is how many times that of Cl2 (g) under the same conditions?

A: According to Graham's Law of effusion the rate of effusion of a gas is inversely proportional to the…

Q: In kinetic molecular theory, what are at least two assumptions that describe an ideal gas?

A: Kinetic Molecular Theory of Gases (KMT) is used to describe the behavior of gases.

Q: A flask containing 121 cm3 of hydrogen was collected under a pressure of 29.2 kPa. What pressure…

A: Pressure is inversely proportional to volume. As pressure increases, volume decreases and vise…

Q: What pressure is exerted by a sample of nitrogen gas of mass 3.055 g in a container of volume 3.00…

A: Number of moles of the substance is equal to the ratio of mass to the molar mass of the substance.…

Q: Write all pertinent computations to justify your final answer What is the molecular weight of gas X…

A: A question based on properties of a gas that is to be accomplished.

Q: What is the partial pressure of oxygen in air at atmospheric pressure (101 kPa)? Assume ideal…

A: Given: Atmospheric pressure = 101 KPa.

Q: What pressure in atm is equivalent to 105.2 kPa?

A:

Q: Could 25 g of argon gas in a vessel of volume 1.5 dm3 exert a pressure of 2.0 bar at 30 °C if it…

A: The mass of the argon gas = 25 g The volume of the vessel = 1.5 dm3 The temperature of the gas = 30…

Q: Carbon dioxide gas is produced as a result of the reaction between calcium carbonate and…

A: GivenVolume of container = V = 104.2 dm3 = 104.2 LPressure of gas = P = 73.6 kPa1 atm = 101.325…

Q: 0.56g of ethene gas is 1 poin contained in a vessel at a pressure of 102 kPa and the temperature of…

A:

Q: Given that the mass density of air at 0.987 bar and 27 °C is 1.146 kg m−3, calculate the mole…

A: Ideal gas assumption is:

Q: The International Union of Pure and Applied Chemistry (IUPAC) has adopted 273.15 K and 1 bar as…

A:

Q: Under which conditions would you expect argon to behave ideally? In 150 K, 100 kPa or in 400 K, 100…

A: Generally a gas behave like ideal gas when intermolecular forces are less significant compare to…

Q: he volume of a 0.5333-g sample of gas was measured at 298 K and pressures of 0.059, 0.143, 0.288,…

A: Here the mass of 0.5333g of unknown gas at different pressures and volumes at 298 K are given. We…

Q: Photosynthesis by land plants leads to the fixation each year of about 1 kg of carbon on the average…

A: Given data,Mass of carbon=1kg%CO2 by…

Q: 5.) The density of a gaseous compound was found to be 1.23 kg m3 at 330 K and 20 kPa. What is the…

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

Q: To what temperature must a sample of helium gas be cooled from 22.2 °c to reduce its volume from…

A: 1.00 dm3 = 1000 cm3 By Charles law : T2T1 =V2V1  T2(22.2 + 273.15) = 100 cm31000 cm3   T2 = 29.535 K…

Q: A flask containing 161 cm ^ 3 of hydrogen was collected under a pressure of 29.5 kPa. What pressure…

A:

Q: 4. The density of a gaseous compound was found to be 1.23 kg/m 3 at 330 K and 20 kPa. What is the…

A:

Q: A 5.00 g of N2 gas in a 4.00 dm^3 vessel by a pressure of 121.0 kPa. What is the temperature of the…

A: Given: Mass of N2 = 5.00 g. Volume of vessel = 4.00 dm3 = 4.00 L…

Q: The mass density of a gaseous compound was found to be 1.23 kg m−3 at 330 K and 20 kPa. What is the…

A:

Q: At conditions of 115 kPa of pressure and a temperature of 18.4C, a gas occupies a volume of 44.3 mL.…

A: When the temperature and pressure of the gas is changed from 115 kPa to 60.3 kPa and 18.4 °C to 30.6…

Q: For a diatomic carbon dioxide gas (CO2 molar mass is 44.0g/mol) at T=300K, calculate (a) the most…

A: Velocity order will be  Vrms> Vav > Vmp

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.