At what temperature does 1.00 atm of carbon dioxide (CO2) gas have the same density as 2.00 atm of helium gas at 25oC?

Q: 1.5002 L of an ideal gas weighs 6.8390 g un der STP. Which of the following could be the gas?…

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Q: A mixture of solid calcium oxide, CaO, and solid barium oxide, BaO, weighing 5.107 g is added to…

A: The objective of the question is to-a) Calculate the moles of carbon dioxide consumed by the…

Q: The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes…

A: Given: Mass of propane is 1g. Temperature of the burner is 210.0°C. The pressure is 1.05 atm. The…

Q: Consider the sample 7.85 moles of CO2 gas at 37°C and 1.2 atm. (a) Find the mass of 7.85 moles of…

A: The objective of the question is to calculate the mass, volume and density of 7.85 moles of CO2 gas…

Q: A sample of gas of mass 3.66 g  occupies a volume of 515 mL  at 48 oC  and 0.24 atm  pressure. What…

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Q: What would be the density (in g/L) of a sample of NH₃ gas at 70.0 °C and 2.50 atm of pressure?

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Q: Calculate the density of CO2(g) at 100°C and 10.0 atm pressure.

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Q: What volume of CO2 at 15 degrees Celcius and 1.50 atm contains the same number of molecules as 0.410…

A: The initial temperature is 15 C, whereas the final temperature is 35 C. The conversion of…

Q: Find the mole fraction (in percents) of C2 H2 (g) that has undergone reaction.

A: 3C2H2(g)       ⇔      C6H6 (g) Initial pressure         7.0 kPa…

Q: An isolated quantity of an ideal gas at 207.8 K has a volume of 31.21L at a pressure of 2.12 atm.…

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Q: n ideal gas in a sealed container has an initial volume of 2.40 L.2.40 L. At constant pressure, it…

A: According to Charles law, at constant pressure, the temperature is directly proportional to the…

Q: The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes…

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Q: A 2.50 liter flask at a temperature of 28.5 °C was used to collect gaseous propane (C 3H8). After…

A: Answer:- This question is answered by using the simple concept of calculation of mass of a gas using…

Q: Suppose you are given two 1-L flasks and told that one contains a gas of molar mass 30, the other a…

A: From ideal gas equation,

Q: A sample of an ideal gas at 1.00 atm1.00 atm and a volume of 1.24 L1.24 L was placed in a weighted…

A: According to Boyle's Law, at constant temperature the volume of given amount of gas is inversely…

Q: what

A: Weight = 14.0 g fluorine gas P1 =  21.0atm at a certain Temperature P2 = 4.30

Q: A mixture of neon and methane gases contains neon at a partial pressure of 406 mm Hg and methane at…

A: Relation between Mole fraction and Partial pressure:  χA = nAnT = PAPT

Q: The mole fraction of CH4 in a mixture of gases is 0.285 with a partial pressure of 0.498 atm. What…

A: The total pressure of a mixture of gases not reacting with each other is equal to the sum of partial…

Q: The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes…

A:

Q: An anaesthetic gas contains 64.81% carbon, 13.60% hydrogen, and 21.59 % oxygen by mass. If 2.00L of…

A: It is given that the anaesthetic gas contains, 64.81% carbon, 13.6% of hydrogen and 21.59% of…

Q: At 1.10 atm and 14.23 ∘C, a 2.15g sample of gas occupies a volume of 2.10×103 mL. Calculate the…

A: Given pressure = 1.10 atm volume = 2.10 × 103 ml Temperature = 14.23°C mass = 2.15 g

Q: Two separate flasks are each filled with a gas at 25.0°C; the valve between them is opened and the…

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Q: Calculate the partial pressure of helium gas for a volume of 1.0 x 10-6 m3 of 222Rn gas after 9…

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Q: A sample of gas of mass 3.22 g  occupies a volume of 442 mL  at 58 oC  and 0.18 atm  pressure. What…

A: The gaseous state is the state of matter with least intermolecular force of attraction between…

Q: How many moles of chlorine gas at 120.0 °C and 33.3 atm would occupy a vessel of 12.0 L?

A: The ideal gas equation is: PV=nRT······(1) Here, P is the pressure, V is the volume, n is the number…

Q: How many moles of chlorine gas at 120.0 °C and 33.3 atm would occupy a vessel of 34.0 L?

A: The ideal gas equation is  PV = nRT  P = pressure of the gas V = volume of vessel n = moles of gas R…

Q: (a)  0.375 g of CO2 gas is held in a 520.-mL container at 24. oC.  What is its pressurre?…

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Q: A mixture of xenon and carbon dioxide gases at a total pressure of 686 mm Hg contains xenon at a…

A: Given : Total pressure of mixture = 686 mm Hg Partial pressure of Xenon, Xe = 163 mm Hg And mass of…

Q: The gas from a certain volcano had the following composition in mole percent: 65% CO2, 25% H2, 5.4%…

A: According to Dalton's law of partial pressure the total pressure of a gaseous mixture is the sum…

Q: How to calculate the pressure in atm, if 8.25 X 10 - 2 mole of an ideal gas occupies a volume of 255…

A: The Ideal Gas equation is given by,PV = nRTwhere,P= Pressure in atmV = Volume in LT = Temperature in…

Q: How many moles of chlorine gas at 120.0 °C and 33.3 atm would occupy a vessel of 26.5 L?

A: Given, Volume of Cl2 = 26.5 L Pressure = 33.3 atm Temperature = 120°C = 120+273 = 393 K

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.