The density of dry air at 1.00 atm and 34.4 degrees C is 1.15 g/L. Calculate the composition of air (percent by mass) assuming that it contains only nitrogen and oxygen and behaves like an ideal gas.

Q: Exhaled air contains 16% oxygen by volume. Assuming you exhale like the average person does during…

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Q: if you have a sample of air that weighs 1.6 kg, how many kg of nitrogen are present?

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Q: A 0.477 mol sample of O2 gas has a volume of 12.4 L at a certain temperature and pressure. If all…

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Q: Some N₂ gas is mixed with some O₂ gas, and the sketch below shows a representative sample of the…

A: The mole fraction (f) of a species is defined as the ratio between the number of molecules or moles…

Q: Please refer to the images

A: “Since you have posted multiple questions, we will provide the solution  only to the first question…

Q: Freon−12 (CF2Cl2), widely used as a refrigerant and aerosol propellant, is a dangerous air…

A: Volume = 38.1 dm3 .....Or  because 1dm3 = 1L     so, = 38.1 L. Pressure = 1.15 atm Temperature =…

Q: Suppose we have a 12.2 L sample containing 0.50 mol oxygen gas (O2) at a pressure of 1 atm and a…

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Q: At a given temperature and pressure, it takes 9.07 minutes for a 1.5-L sample of He (helium) to…

A: Answer:- This question is answered by using the simple concept of rate effusion which is inversely…

Q: A 46.0-mLmL sample of gas in a cylinder is warmed from 26 ∘C to 91 ∘C What is its volume at the…

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Q: 1.Calculate the final volume when 125 mL of argon gas undergoes a pressure change from 705 mmHg to…

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Q: The molar mass of helium (He) is approximately twice that of hydrogen (H,). What is the ratio of the…

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Q: Consider the following reaction: 2 NH3 (g)   +   3 Cl2 (g)   →   N2 (g)   +   6 HCl (g) A mixture…

A: Consider the following reaction: 2 NH3 (g)   +   3 Cl2 (g)   →   N2 (g)   +   6 HCl (g) The given…

Q: For $350.0 you can purchase a cylinder of helium gas on line, with a volume of 2.373 cubic feet and…

A: To solve this question, first calculate number of moles for helium and then convert that moles in…

Q: It’s a bad day in the lab!  Two students are doing experiments.  Each is 20 feet away from the…

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Q: Nitrous oxide (N₂O), also known as laughing gas, has uses in surgery and dentistry as an anesthetic.…

A: Mass of N2O in cylinder = 3.40 kg = 3400 gmolecular weight of the nitrous oxide = 44.013 g/mol.No of…

Q: A cylinder is filled with 10.0 L of gas and a piston is put into it. The initial pressure of the gas…

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Q: Calculate the total mass (in kg) of nitrogen, oxygen, and carbon dioxide gases in the atmosphere.…

A: In chemistry, the mass fraction of a substance within a mixture is the ratio of the mass of that…

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

A: Given information: Temperature = 345 K

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A: For a definite amount of gas, at constant pressure, the volume of the gas increases with an increase…

Q: The volume of oxygen that would form at standard temperature and pressure

A: Given :- mass of KClO3 = 0.456 g  To calculate :- volume of O2 produced (in mL)   at STP :-  1 mol =…

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Q: The human body burns glucose (C6H12O6) for energy according to this chemical reaction: C6H12O6+6O2→…

A: The human body burns glucose (C6H12O6) for energy according to this chemical reaction: C6H12O6  +…

Q: A sample of methane gas at a pressure of 0.947 atm and a temperature of 29.0 °C, occupies a volume…

A: According to Boyle's law, at constant temperature with increase of pressure of ideal gas volume…

Q: A 5.0 × 102 sample of sulfur dioxide, SO2(g), has a volume of 2.37 × 106 L. If the temperature of…

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Q: Propane burns in air according to the equation: C3H8(g) + 5O2(g) -> 3CO2(g) + 4H2O(g). What volume…

A: The number of moles of propane is calculated as shown below where V is the volume of propane and Vm…

Q: Calculate the final Celcius Temperature when 125 mL of chlorine gas at 25 degrees Celsius  is heated…

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

Q: (a) Find the density in SI units of air at a pressure of 1.00 atm and a temperature of 20 °C ,…

A: The density can be calculated by using ideal gas equation as follows

Q: A sample of oxygen gas initially at 329 K was heated to 383 K. If the volume of the oxygen gas…

A: Charles’s law is given by,

Q: ClFx is an interhalogen compound which is known to be very irritant and toxic. These compounds are…

A: The equation for an Ideal Gas is as follows:The product of a gas's pressure and volume is…

Q: 3. Oxygen travels at a velocity of 29.0 m/s. At what velocity would SF4 travel under the same…

A: Given velocity of oxygen = 29 m/s Formula to find  the velocity O2/SF4 = ( x/29) 1/2