A 1.25g gas sample occupies 663ml at 25.0C and 1.00 atm. What is the molar mass of the gas

Q: Which gas sample contains the most molecules? A 24 dm of carbon dioxide, CO2 B 4g of hydrogen, H2 C…

A: Here some compounds are given, we have to determine which of them contains maximum number of…

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: A sealed container holding 0.0255 L0.0255 L of an ideal gas at 0.979 atm0.979 atm and 67 ∘C67 ∘C is…

A:

Q: A certain gas has a density of 1.72g/L at STP. What is its molar mass?

A: Given that: Density of the gas = 1.72g/L The gas is STP. To find, the molar mass of the gas?

Q: If a gas is cooled from 511.0 K to 295 K and the volume is kept constant, what final pressure would…

A: Given that: T1 = 511.0 K T2 = 295 K P1 = 601 mm Hg To find: the final pressure, P2?

Q: Suppose a sample of refrigerant gas consisting of a simple mixture of the gases pentafluoroethane…

A: Given : Density = 2.30 g/L  Pressure = 0.337 atm

Q: A 7.00 L tank at 0.543°C is filled with 8.89 g of dinitrogen difluoride gas, 9.41 g sulfur…

A: Given data volume of tank : V = 7.00 L Temperature : T =0.543 oC mass of dinitrogen difluoride gas :…

Q: A sample of gas contains 0.1800 mol of NH3(g) and 0.2250 mol of 02(g) and occupies a volume of 17.6…

A: The change in temperature, pressure, volume and number of moles of an ideal gas is given by ideal…

Q: At 1.391.39 atm and 22.75 ∘C22.75 ∘C, a 2.772.77 g sample of gas occupies a volume of 15501550 mL.…

A: An ideal gas is an hypothetical gas where the particles are randomly moving with no inter-particle…

Q: Suppose a sample of refrigerant gas consisting of a simple mixture of the gases pentafluoroethane…

A: Given: Density = 1.79g/mol Pressure = 0.447 atm

Q: A 12.5g gas sample occupies 663ml at 25.0c and 1.00 atm what is the molar mass of the gas

A: Ideal gas law can be written as PV = nRT Where, P = pressure V = volume n = moles of gas R = Gas…

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: Given an Ideal Gas mixture of 2.33 atm H2, 1.78 atm N2, 0.788 atm Xe, 0.900 atm CO2, which gas will…

A:

Q: What is the molar volume of an ideal gas at 546 R and 1.00 atm? 16.9 L 89.6 L 22.4 L 11.2 L 44.8 L

A: To calculate the molar volume of an ideal gas at 546 K and 1.00 atm.

Q: A 1.25-g gas sample occupies 663 mL at 25 °C and 1.00 atm. What is the molar mass of the gas?a)…

A: Pressure of the gas (P) = 1 atm Volume of the gas (V) = 0.663 L Temperature of the gas (T) = 298 K…

Q: A 3.55 g sample of an unknown gas at 59 °C and 1.05 atm is stored in a 1.05 L flask. What is the…

A: a) Since mass of gas is given = 3.55 g  and volume of gas = volume of flask = 1.05 L hence density…

Q: A large flask with a volume of 936 mL is evacuated and found to have a mass of 134.66 g. It is then…

A: step 1: Here, given as the: Thus, the mass of gas is 1.38g. Now, to calculate the molar mass,…

Q: A 1.95 g sample of an unknown gas at 67 °C and 1.05 atm is stored in a 2.05 L flask. What is the…

A: The molar mass of a chemical compound is defined as the mass of a sample of that compound divided by…

Q: The volume occupied by one gmole of an ideal gas at 25 °C and 1 atm is most nearly:a. 2.05 Lb. 22.4…

A: Given data contains, Mole of ideal gas is 1 mole. Temperature is 25°C=298.15 K Pressure is 1 atm.

Q: A 4.05 g sample of an unknown gas at 33 °C and 1.05 atm is stored in a 3.05 L flask. What is the…

A:

Q: The density of a gas at 37° C and 175kPa is 14.7g/L. Determine the molar mass of this gas. -…

A:

Q: a flask contains 1.00 L of a pure gas at 0.850 atm and 20.0°C. mass of the gas= 1.13 What is the…

A:

Q: A mixture contains O2 at 429 torr pressure, F2 at 794 torr pressure, and Cl2 at 171 torr pressure.…

A: Total pressure is given by Dalton's law i.e. total pressure is equal to sum of partial pressure of…

Q: Some N, gas is mixed with some 0, gas, and the sketch below shows a representative sample of the…

A: Mole fraction = mole of gas /total mole Partial pressure = mole fraction × total pressure Given that…

Q: 4. A 30.6 g sample of gas occupies 22.414L at STP. What is the molecular weight of this gas?

A: As per the ideal gas equation: PV=nRT where, P = Pressure of gas V = Volume occupied by the gas n =…

Q: A 3.95 g sample of an unknown gas at 53 °C and 1.05 atm is stored in a 2.35 L flask. What is the…

A: Given: Mass (M) is 3.95 g Pressure (P) is 1.05 atm Volume (V) is 2.35 L Temperature (T) is 53oC To…

Q: A 1.95 g sample of an unknown gas at 61 ∘C and 1.00 atm is stored in a 1.45 L flask. What is the…

A: Given information:Mass of sample = 1.95 gTemperature = 61 °CPressure of gas = 1.00 atmVolume of…

Q: A 5.25g sample of gas occupies a volume of 1L and exerts a pressure of 1.074atm at -4 degree…

A: An ideal gas is represented by the following expression: PV = nRT    ............ (1) where P, V, n,…

Q: At 1.00 atm and 4.67 °C, a 2.72 g sample of gas occupies a volume of 1540 mL. Calculate the molar…

A: Given - - > P = 1 atm T =4.67 °C = 277.82 K V=1540 ml =1.54 L m = 2.72 g R = 0.08206…

Q: A 2.35 g sample of an unknown gas at 51 °C and 1.05 atm is stored in a 1.35 L flask. What is the…

A: Given, mass of a unknown gas sample (m) = 2.35 g Temperature (T) = 51°C = (51 + 273.15) K = 324.15 K…

Q: A vessel of a certain volume contains two ideal gases, let's call them A(g) and B(g). The mole…

A: Assuming the total moles of gas initially is y. Hence moles of A in vessel initially = mole fraction…

Q: A gas mixture consists of 0.421 mol hydrogen (H2), 0.664 mol carbon dioxide (CO2), and 1.965 mol…

A: Given :-  Number of moles of H2 = 0.421 mol  Number of moles of CO2 = 0.664 mol Number of moles of…

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: A  2.75 g gas occupies 450 mL at 37 0C and 1.50 atm. What is the molar mass of the gas?

A:

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

A: Mole fraction = mole of species / total moles Partial pressure of specie= mole fraction × total…

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

A:

Q: Some N, gas is mixed with some 0, gas, and the sketch below shows a representative sample of the…

A: Mole fraction is the ratio of moles of a particular molecule to the sum of moles of the mixture. It…

Q: Determine the mole fraction of each gas in a mixture whose partial pressures are 0.467 atm of He,…

A: Given, a mixture of gas of He, Ar and Xewhose partial pressures are 0.467 atm of He, 0.317 atm of…

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

A: The given figure has three types of particles, single blue, single orange and double green. The…

Q: A 1.58 gram sample of an unknown gas is found to occupy a volume of 0.886 L at a pressure of 658 mm…

A: Molar mass of unknown gas can be calculated by using ideal gas equation.

Q: 4. If a gas is cooled from 323.0 K to 273.15 K and the volume is kept constant what final pressure…

A: Gas laws are the laws that relate to the pressure, temperature, and volume of a substance. The…

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

A: Total pressure = 1100 torr We need to find partial pressures and mole fraction of each component.

Q: Assuming that a 1.5 g gas occupying a volume of 500 ml at a pressure of 1.75 atm and a temperature…

A: Given: Mass of gas = 1.5 g. Volume of gas = 500 mL = 0.500 L…

Q: sample of unknown gas weighs 2.80 g and occupies 710 mL at 740 mmHg and 70 ∘C. What is the molar…

A: PV = nRT ideal gas equation P = 740 mmHg = (740/760)atm =0.974atm V= 710 ml = 0.710 L  Temperature =…

Q: gas mixture is made by combining 8.8g of each Ar, Ne, and an unknown diatomic gas. At STP, the…

A: The total number of moles of gas present in the mixture can be calculated using molar volume of a…

Q: At a constant pressure, 3.00 L of a gas is heated from 300 K to 382 K. The final volume of the gas…

A:

Q: A clean, dry and open empty flask is being heated in a water bath. Under which conditions before or…

A: The ideal gas equation is PV = nRT Here , P = pressure of gas V = volume of gas n = number of moles…

Q: At 1.041.04 atm and 6.78 ∘C6.78⁢ ∘C, a 3.543.54 g sample of gas occupies a volume of…

A:

Q: A 1.05 g sample of an unknown gas at 61 "C and 1.05 atm is stored in a 2.55 L flask. What is the…

A: Mass per unit volume is known as density. S.I unit of density is g/cm3 or kg/m3. Other units of…

Q: A 4.00 L flask filled with He at 6.00 atm is connected to another 2.00 L flask containing N2 at 3.00…

A: Considered that the temperature of the system is 298.15 K. The number of moles of He and N2 is…

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.