A tank full of oxygen gas (O2) contains 12 grams of the gas at a gauge pressure of 40.0 atm. Assuming that the temperature of the tank remains constant, determine the mass of oxygen gas that has been withdrawn from the tank when the gauge pressure falls to 25.0 atm.

Q: A sample of an ideal gas at 1.00 atm and a volume of 1.90 L was placed in a weighted balloon and…

A: Applying Boyle’s law P1V1 = P2V2  where P1 V1 are initial pressure and volume  P2 , V2 are final…

Q: Consider this molecular-level representation of a mixture of gases. If the partial pressure of the…

A: partial pressure is the pressure exerted by individual gas molecules.

Q: 2320 mmHg to atm

A: Given pressure : P= 2320 mm Hg

Q: What is the initial pressure of a gas if it occupied a volume of 0.375 L, but now occupies a volume…

A: PV= nRT  P1/V1=P2/V2

Q: Given a gas with a pressure of 695 Pa, convert this to units of atm:

A: The question is based on the concept of dimensional analysis. we have been given pressure in…

Q: Explain why the molar volume of helium (or any other ideal gas) is 22.4 L.

A: The volume occupied by one mole of gas at temperature 0°C (273K) and 1.00 atm pressure can be easily…

Q: A sample of nitrogen gas (N2) is at a temperature of 25oC. Calculate the speed of the N2 molecule…

A: Since the kinetic energy of 1 mole of the gas molecules is given by  KE = (3/2) RT  where R = gas…

Q: Imagine that you have a 5.50 L gas tank and a 4.50 L gas tank. You need to fill one tank with oxygen…

A: The balanced reaction is: The mole ratio is: 1 mol C2H2  ---> 5/2 mol O2 Thus, we need 2.5 times…

Q: After collecting all the gas, the student pushed down the piston to half of the original Volume and…

A: This is a problem from thermodynamics. If he pushed down the piston to half of the original Volume…

Q: Consider a mixture of two gases, A and B, confined added to the same vessel at the same temperature.…

A: Vessel initially had gas A and B. Third gas C was added to the vessel at same temperature. Now, we…

Q: The following data was collected. Find the molar mass of the unknown gas. Mass of syringe, cap and…

A: The mass of syringe, cap and nail (containing vacuum) does not affect the mass of gas because,…

Q: A particular gas has a pressure of 59.8 bar, convert this to units of atm.

A: We know ; 1 bar = 0.987 atm  by using this relation we can convert the pressure of bar into atm .

Q: What are the conditions of temperature and pressure for a real gas to behave most like an ideal gas?

A: From the kinetic gas theory, an ideal gas consists of randomly moving gas molecules that do not…

Q: Calculate the density of 1.0 mole of ammonia gas at 0.913 atm and 20.0 Celsius.

A: The ideal gas equation in terms of density of the gas (ρ) can be expressed as: Pρ  =  RTMwP  =…

Q: A 1.00 L vessel containing 1.00 g H2 gas at 27 Celcius is connected to 2.00 L vessel containing 88.0…

A: Calculate the total moles and total volume,           Moles of H2 = 1 g2.016 g/mol = 0.496 molMoles…

Q: 15.00 L vessel containing 5.65 g H2 gas at 27 Celcius is connected by means of a valve to a 6.00 L…

A: Given; Volume (V1 ) of H2  vessel = 15 L Volume (V2 ) of O2 vessel = 6 L Temperature (T) = 300K…

Q: If pressure is expressed in atmospheres and volume is expressed in liters, PAV has units of L atm…

A: P∆V = 4Latm  1 L = 1dm3  1atm = 101,325Pa  P∆V = 4 * 1dm3 * 101325Pa  P∆V = 405300 dm3Pa

Q: partial pressure

A:

Q: Use the data below to calculate the volume of the gas at STP (standard temperature and pressure)…

A: One mole of a gas under STP conditions occupies volume 22.4 L. Therefore, mass of 22.4 L of a gas…

Q: A tank full of oxygen gas (O2) contains 12 grams of the gas at a gauge pressure of 40.0 atm.…

A:

Q: A 37.0L sample of air at 1.00 atm and 25°C is pressurized to 5.15 atm, and only allowed to increase…

A:

Q: A vessel contains 0.75litres of a gas at 45°C under a pressure 2.75torrs. Estimate the amount of the…

A:

Q: A gas sample contained in a cylinder equipped with a movable piston occupied 300 ml at a pressure of…

A: This problem is based on Boyle's law which states that at constant temperature, pressure of fixed…

Q: A gaseous mixture contains 3.23 g of chloroform CHCl3 and 1.22 grams of methane CH4 . Assuming that…

A:

Q: A tank contains a mixture of 55.5 % oxygen gas and 44.5 % carbon dioxide gas by mass at 27°C. The…

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Q: The __________ assumes that gas molecules are very small and that they exert no. force on each…

A: Ideal gas :-  A gas which obeys all the gas laws under all conditions of temperature and pressure is…

Q: The temperature of a sample of gas in a closed container at 30 kPa is increased from 41° C to 100°C.…

A:

Q: A sample of gas at 43.67 K exerts a pressure of 1.56 atm. Calculate the final pressure if the…

A: Gay-Lussac's gives the relation between pressure and the temperature of the gas. Pressure is…

Q: c For the following set of pressure/volume data, calculate the missing quantity. Assume that the…

A: We know for an ideal gas, pressure, volume and temperature are related by the ideal gas equation as-…

Q: At 27 degrees celsius, 10 moles of gas in 1.5 L- Container exert a pressure of 130 atm. Is this an…

A: PV = nRT

Q: Determine the total pressure exerted by a mixture containing two gases if the partial pressure of…

A: Given that, P1 = 70 atm P2= 30 atm PT= ?

Q: A sample of an ideal gas has a volume of 2.40 L at 278 K and 1.08 atm. Calculate the pressure when…

A: Given that : At temperature T1 = 278 K, Pressure of ideal gas P1 = 1.08 atm Volume of ideal gas V1 =…

Q: Under what conditions do real gases tend to show ideal gas behaivour?

A: Gases which obey gas laws or ideal gas equation ,that is  at all temperature and pressures are…

Q: The contents of the N2 piston are then transferred to the O2 piston, while maintaining the O2 piston…

A: We have two different cylinders containing 1 mole each of O2(g) and N2(g).  Each of the cylinders is…

Q: calculate the ratio of effusion rates for argon and neon gases. use a ratio of Ar:Ne 1.19:1 .505:1…

A: Interpretation: We have to calculate effusion rate.

Q: A certain amount of chlorine gas was placed inside a cylinder with a movable piston at one end. The…

A: Given that: Initial volume of gas = 3.00 LFinal volume of gas = 1.00 LInitial pressure of gas = 1.25…

Q: The initial and final states of pressure, volume, and tempertaure of an ideal gas can be expressed…

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Q: 500.0 mL sample of a gas at 760.0 mm Hg were compressed to 200.0 mL. Find the new pressure if the…

A: To solve this problem we have to assume temperature and number of moles are constant throughout the…

Q: Which statement is false? Molecules of greater mass have a lower average speed than those of less…

A: The answer to the following question is-

Q: Aqueous potassium hydroxide reacts with 16.7 L of carbon dioxide gas at 298 K and 1.00 atm to form…

A: When aqueous potassium hydroxide reacts with a given amount of carbon dioxide, it produces potassium…

Q: Calculate the density of I2  at STP using the ideal gas law. 11.32 g−L−1   from here...…

A: Solution :        Molar volume is known as the volume occupied by one mole of gas. An ideal gas…

Q: Which of the graphs below shows the relationship between the molar volume and molar mass of ideal…

A: Avogadro rule: According to this rule, if the temperature and pressure of the gases are the same…

Q: Calculate the following quantities for an ideal gas:

A: Given: Volume V=4.50 LPressure P=760.0 mmHg=1 atmtemperature T=25.0°C=298 Kuniversal gas constnat…

Q: Some N2 gas is mixed with some O2 gas, and The picture shows a representative sample of the mixture.…

A:

Q: A small carbon dioxide gas cylinder used to propel paint balls has a mass of 56.3g. When all the gas…

A: The ideal gas equation is the relationship between the pressure, volume, and temperature of a gas.…

Q: Identify the statement that describes Dalton's law of partial pressures. The total pressure exerted…

A:

Q: Using the kinetic-molecular theory of gases, explain how the pressure of an ideal gas at constant…

A: From kinetic theory of gases : PV = 1/3 mnc2       = 2/3 × 1/2 mnc2 since KE = 1/2 mc2 PV = 2/3 K.E…

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.