You have a sample of an unknown gaseous compound which has a density of 8.51 g/L at 55.0 °C and 88.6 kPa. What is the molar mass of this compound?

Q: If some neon gas at 150 kPa were allowed to expand from 3.0 L to 6.0 L 1 point without changing the…

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Q: if the density of an ideal gas at STP is found to be 1.96 g/L, what is the molar mass?

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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: what is the density of oxygen gas at 25 degrees C and 120 kPa?

A: The density of oxygen gas at 25 degrees C and 120 kPa is to be determined.

Q: A sample of gas with a temperature of 124K is manipulated so that its pressure is increased by a…

A: A sample of gas with a temperature of 124K is manipulated so that its pressure is increased by a…

Q: A sample of argon gas at 55.19 °C has a pressure of 92.56 kPa and occupies 5.71 L. How many moles of…

A: In this question, we want to determine the number of moles of Argon gas  You can see details…

Q: How many moles of nitrogen occupy 52.07 L at 119.09 kPa and 62.48 oC?

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Q: What is the mass of chlorine gas present in 17.0 L at a pressure of 98.5 kPa and a temperature of 13…

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Q: What is the volume occupied by 1.24 mol of a gas at 35oC if the pressure is 96.2 kPa? What is the…

A: This is given by equation of state for ideal gas i.e.  PV = nRT On combining all the gas laws a…

Q: What is the density of a gas with a molar mass of 163 g/mol at 25C and 1.00 atm?

A: Given information: Molar mass = 163 g/mol Temperature (T) = 25 °C Pressure (P) = 1.00 atm

Q: What is the molar mass of a gas found to have a density of 0.841 g/L at 415 K and 96.7 kPa?

A: Interpretation- molar mass of gas Concept introduction- Ideal gas equation is, PV= nRT……… (1)…

Q: How many molecules of CO2 are contained in a 5.00 L tank at 7.53 atm and 485 K?

A: The question is related to the ideal gas equation. The formula for the ideal gas equation is as…

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

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Q: A sample of neon with a molar mass of 20.18g/mol has a volume  of 2.00L under a pressure  of 1.10…

A: According to ideal gas law, Assuming amount of substance and R constant the final and initial…

Q: At what temperature are 1.9 moles of gas held at a pressure of 115 kpa in a container with a volume…

A: 1.9 moles of gas are held at 115 kPa in volume 50 L, we need to find the temperature of gas. n = 1.9…

Q: A high-altitude balloon contains 30.0 L of helium gas at 1.00 kPa. When the balloon moves to an…

A: Given data---> V1=30.0 L P1= 1.00 kPa P2= 25.0 kPa V2= ?

Q: A 12.0 g sample of a gas has a volume of 5.25 L at 29 ∘C and 98 kPa. If 2.6 g of the same gas is…

A: Given, m = 12.0 g V = 5.25 L T = 29 + 273 = 302 K P = 98 kPa Substitute these values in ideal gas…

Q: Define the term Molecular Effusion?

A: The term molecular effusion has to be defined.

Q: A given volume of Nitrogen (28.02 g/mol) needs 52.3 seconds to effuse from a hole in a chamber.…

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Q: Sodium metal reacts with chlorine gas to form sodium chloride. A closed container of volume 2.00 x…

A: The reactants given are sodium metal and chlorine gas and the product is sodium chloride. Given:…

Q: If the mercury in a manometer raises 43.0 millimeters due to a change in pressure, what is the…

A: Mercury in manometer raises 43.0 millimeter So the pressure is 43.0 mmHg Recall the relation between…

Q: A gaseous compound has a density of 1.63 g/L at 27.5 °C and 1.30 atm. What is the molar mass of the…

A: All matter can be classified as solid, liquid and gases mainly. In these physical states of matter,…

Q: A chemist has synthesized green-yellow gaseous compound of chlorine and oxygen and finds that its…

A: It is known that,   Given data,

Q: Calculate the density of uranium (VI) fluoride, UF6, at 70.0 °C and 25.0 kPa.

A: density of uranium (VI) fluoride, UF6 = d = ................ Molar mass of UF6 = M = 352 g/mol…

Q: 2. What mass of chlorine gas, Cl2 in grams, is contained in a 10.0 L tank at 27°C and 3.50 atm of…

A: Using ideal gas equation PV=nRT ,we can find mass of chlorine gas produce.

Q: What is the mass of a 3.00 L sample of a gas if this volume was measured at 40oC and 99.2 kPa?…

A: Let the pressure, volume, number of moles and mass of the gas at 40◦C (313K) be P1, V1, x and W1…

Q: hat would the volume of the gas be at a pressure of 65.0 kPa?

A: According to the Boyle's law, if two gases are kept under same temperature having equal moles, the…

Q: A 190 mL sample of neon has its pressure changed from 75kPa to 160 kPa. What is its new volume?

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Q: 2. A sample of oxygen occupies 10 L ,pressure of 790 torr (105 kPa ).At what pressure occupies 13.4…

A: The correct answer is given below

Q: Calculate the density (in g/L) of Freon-12, CF2Cl2, at 32.2°C and 0.968 atm.

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

Q: A 10.9 g sample of a gas has a volume of 5.25 L at 30 ∘C and 107 kPa. If 2.9 g of the same gas is…

A: Given A 10.9 g sample of a gas has a volume of 5.25 L at 30°C and 107 kPai.e. initial amount of gas…

Q: We find that a mass of 0.896 g of a gaseous compound, containing only nitrogen and oxygen, occupy a…

A: By help of Ideal gas equation, we can calculate the molar mass of given compound , we use Following…

Q: What is the molar mass of an unkown gas with a density of 2.00 g/L at 1.00 atm and 25.0 degrees…

A: Given Density of unknown is 2.00 g/L at 1.00 atm and 25.0°C To find  Molar mass of the unknown

Q: Consider the chemical reaction:…

A: Consider the chemical   reaction:…

Q: what mass of chlorine gas, cl^2 in grams, is contained in a 10L tank at 27° and 3.50 atm of…

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Q: A rigid gas cylinder contains 370 grams of oxygen gas at 30 atm and 25oC. What must be the final…

A: According to the our policy we should solve one question, if any subparts present then first three…

Q: What mass of butane, in g, will be needed to fill a 3.12 L container to a pressure of 858 torr at a…

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Q: A sample of a gas occupies a volume of 185.5 mL at 20.2°C and 0.945 atm.  What pressure would it…

A: Given: V1=185.5 mLP1=0.945 atmT1 =20.2oC      =(20.2+273.15)K     = 293.35 KV2=255.5 mLT2=34.5oC…

Q: A sample of nitrogen occupies 9.5 liters at 32 oC and 85.7 kPa. What would be the volume at 20 oC…

A: We can use the gas equation to calculate the volume of the gas at a different temperature and…

Q: If 5.0 moles of O2 and 3.0 moles of N2 are placed in a 30.0 L tank at a temperature of 25° C, what…

A: Moles of O2 gas and moles of N2 gas is given and finale volume and temperature is given . Total…

Q: 3. A sample of gas at 3.00 x 103mmHg inside a steel tank is cooled from 500.00C to 0.000C. What is…

A: Given: Initial pressure P1= 3.00×103 mmHg= 3.00×103760=3.95 atm Initial temperature T1= 500°C= 773K…

Q: As part of the production of vinyl chloride — which is used to make polyvinyl chloride (PVC) plastic…

A: Ideal gas equation will help us to find the temperature at which pressure become 3.6 atm.…

Q: What is the mass of chlorine gas present in 17.0 L at a pressure of 98.5 kPa and a temperature of…

A: This problem will be solved using ideal gas equation which is given as PV= nRT  Where, P = pressure…

Q: What is the mass (in g) of a 28.2 L sample of carbon dioxide gas at a temperature of 30.0 oC and a…

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Q: A sample of chlorine gas starting at 684 mm Hg is placed under a pressure of 992 mm Hg and reduced…

A: Given : Initial pressure of chlorine gas = 684 mm Hg Final pressure of chlorine gas = 992 mm Hg…

Q: A 0.0733 L balloon contains 0.584 grams of iodine gas, I2, at a pressure of 93.6 kPa. What is the…

A: Given that,  Volume of balloon V = 0.0733 L Weight of iodine gas in balloon w = 0.584 g Pressure of…

Q: A given volume of oxygen, O2, required 62.0 seconds to effuse from a hole in a chamber. Under the…

A: The formula which relates time to effuse for a gas and molecular mass is shown below: Time for…

Q: 冰 26.0 cm What is the pressure of the gas contained in bulb C? (Specify units-- your choice of torr,…

A: We know that, atmospheric pressure will be equal to 760 torr that is Patomspheric 1cm =9.9torr So…

Q: What pressure is exerted by 129.5g of CH4 in a 0.3900 L steel container at 215.7k?

A: If a gas behaves like an ideal gas, it will follow the ideal gas equation. It gives the relationship…

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.