3. If you hada 30 liter container at 400 Kelvin and 4.2 atm of pressure, and the gas hadamolecularweight of 32 gram s/m ole, how m any gram s of the substance is in the container?

Q: If x grams of oxygen gas (O2) are in a 9.9 L tank with a pressure of 2.29 atm at 0°C, what is the…

A: using the ideal gas law equation to calculate the moles then to calculate the mass of O2

Q: 3. What is the partial pressure of each gas, 5.00 g O2 and 5.00 g N2₂, when held at a total pressure…

A:

Q: 1. A 9.70 liter sample of gas measured at 33.0°C and 1.59 atm of pressure has a mass of 14.28 g.…

A: An ideal gas equation shows the relationship between pressure (P), volume (V), and temperature (T)…

Q: A certain quantity of neon gas is under 798 mm Hg  pressure at 30.0°C  in a 10.0 L vessel. How many…

A:

Q: unknown. a. Gas Law: Charles Solve for the Unknown: 295 425 (22+273)K 5.34atm. Gas Law: Boyle's Law…

A:

Q: f a steel container holds 3.50 moles of hydrogen gas and 3.50 moles of helium gas, and the total…

A: Partial Pressure is defined as if a container filled with more than one gas, each gas exerts…

Q: A sample of xenon gas that occupies a volume of 43.4 L at a temperature of 0 °C and a pressure of 1…

A:

Q: A sealed flask contains 3.1 L of a gas at 2.4 atm and 22.7 °C. If the density of the gas is 9.7 g/L,…

A:

Q: If a gaseous mixture is made of 2.93 g of He and 2.27 g of Ne and is in an evacuated 2.01 L…

A: The product of mole fraction with total pressure gives the partial pressure of a gas. Given volume…

Q: What is the molar mass of a gas 0.735 L at 20.0 Celsius in 2683 atm weights 3757 g?

A: Given -> Volume (V) = 0.735 L Temperature (T) = 20.0°C = 20.0 + 273 = 293 K Pressure (P) = 2683…

Q: What is the pressure of 2.01 g of nitrogen gas confined to a volume of 0.205 L at 36 ∘C?

A: Given, Mass of nitrogen = 2.01g Volume = 0.205L Temperature  = 36 degree Celsius.

Q: Find the volume, in mL, when 7.00 g of O2 and 1.50 g of Cl2 are mixed in a container with a pressure…

A: Given data: Temperature, T = 22°C = 295.15 K Pressure, P = 482 atm Mass of oxygen = 7.00 g Mass of…

Q: A gas with a volume of 0.559 L is initially at an unknown temperature.  The gas is submerged in…

A: Given, V1 = 0.559L T1 = ? V2 = 0.277L T2 =  100 degree Celsius

Q: If 4.68 g Ar are added to 4.09 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

A: no of moles Ar=4.6840                      =0.117no of moles of He , under given conditionAssuming…

Q: The mass of 1.12 L gas at STP is found to be 6.23 g. What is the molar mass of gas Y ?

A: Given data is: Volume of gas = 1.12 L  Given mass = 6.23 g The procedure to finding the molar mass…

Q: A sample of gas at 25.8ºC has a volume of 17 L and exerts a pressure of 741 mm Hg. How many moles of…

A:

Q: At 570 mm Hg and 25.0 celcius a gas sample has a volume of 2270 ML. What is the final pressure  (in…

A:

Q: 4. Calculate the molar mass of a gas if 3.30 g of the gas occupies 600. mL at 735 mmHg and 27…

A: Molar mass of any molecule is the mass of 1 mole of any gas at standard temperature and pressure. By…

Q: A gas occupies 30. L at 2.0 atm pressure and 27°C. How many moles of gas are present in the sample?

A: Given  Pressure of a gas (P)  = 2 atm  Volume (V)          = 30 Liter Temperature (T)  = 27 ℃…

Q: What is the density of a gas (in gt) at 556. mmHg.-15.28 C. and has a molar mass of 68.9 gimol?…

A: Formula of density of a gas: d = PMRT  d   = 556760atm×68.9 g/mol0.08206…

Q: 3. A sample of gas occupies 5.00L at a temperature of 27 degrees celsius. What will its volume be at…

A: Given, Initial Volume , V1 = 5.00 L Initial Temperature = 27°C Final temperature = 127°C Final…

Q: Calculate the final pressure required to increase the volume of a 5 L sample of gas initially at 1…

A: We have initial pressure as 1 atm, initial volume as 5L,  We have to calculate the pressure…

Q: A mixture of two gases, A and B, at a total pressure of 2.95 atm is found to contain 0.42 moles of…

A: Given,  Total pressure = 2.95 atm Moles of gas A  = 0.42 mol Moles of gas B = 0.86 mol   Total moles…

Q: A sample of oxygen gas at a pressure of 790 mm Hg and a temperature of 50 °C, occupies a volume of…

A: Ideal gas equation will be used in this problem. It is written as PV = nRT where P = pressure, V =…

Q: (a) How many moles of oxygen gas are present if the volume is 500 milliliters at a temperature of…

A: a.PV =nRTn = PVRT = 90atm × 0.500L 0.0821 L*atm/mole*K × 298.15K = 1.84atm

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.