A quantity of CO gas occupies a volume of 0.38 L at 2.0 atmatm and 281K. The pressure of the gas is lowered and its temperature is raised until its volume is 2.9 L. Find the density of the COCO under the new conditions.

Q: A certain gas sample has a volume of 225 mL at a pressure of 1.25 atm at 27oC; what would be its…

A: Given: P1 = 1.25 atm V1 = 225 ml P2 = 0.75 atm V2 = ? according to boyles at constant temperature.…

Q: A mixture of carbon dioxide and helium gases, in a 7.15 L flask at 50 °C, contains 13.4 grams of…

A: We can use ideal gas equation to calculate the partial pressure of each gas. The ideal gas equation…

Q: A sample of xenon gas at a pressure of 955 mm Hg and a temperature of 39 °C, occupies a volume of…

A:

Q: A newly discovered gas has a density of 2.16 g/L at 26.0 °C and 731 mm Hg. What is the molar mass of…

A: Given: The density of new element,(d)=2.16 g/L The temperature, (T)=26.0 °C=(273.15+26)=299.15 K The…

Q: mixture contains 10.0 g N2 amd 10.0 g of CO2 in a 2.55 L container at 25 degrees C.    - Calculate…

A:

Q: molar mass

A:

Q: A sample of argon gas at 2.90 atms and 35.0 mL, is heated from 20.0°C to 50.0°C. If the pressure…

A: Convert the unit of temperature:

Q: A 2.55 g sample of an unknown gas at 31 ∘C and 1.05 atm is stored in a 2.85 L flask. What is the…

A: First the density is determined by using density formula as shown below,

Q: A sample of xenon gas at a pressure of 906 mm Hg and a temperature of 34 °C, occupies a volume of…

A:

Q: A mixture of hydrogen and helium gases, in a 5.17 L flask at 36 °C, contains 0.390 grams of hydrogen…

A: Given, Volume of the flask (V) = 5.17 L Temperature (T) = 36°C = (36 + 273.15) K = 309.15 K Mass of…

Q: A gas is initially at 302 K, 839 torr, and occupies a volume of 4.29 L.  What volume will the gas…

A: We will use the concept of ideal gas equation here. From ideal gas equation we have a derived…

Q: A sample of helium gas at a pressure of 923 mm Hg and a temperature of 72 °C, occupies a volume of…

A:

Q: 1) A sample of Cl2 gas has a volume of 11.0 L at a pressure of 1.50 atm and a temperature of 23 ∘C.…

A: 1) Given that : Initial volume(V1) = 11 L Initial pressure(P1) = 1.50 atm Initial temperature(T1) =…

Q: The density of a gas is found to be 1.45 g/L at 27 degrees C and 0.900 atm. What is the molar mass…

A: The ideal gas law, that related different parameters of a gas is given as:

Q: A sample of carbon dioxide gas at a pressure of 865 mm Hg and a temperature of 54 °C, occupies a…

A: Ideal gas equation: PV = nRT  At constant P and n : V   α    T V2V1=T2T1  V26.69=75+27354+273V2 =…

Q: What is the final pressure (expressed in atm) of a 3.05 L system initially at 724 mmHg and 298K  and…

A: Introduction :  We have to calculate final pressure of gas .

Q: A 3.99 g sample of a diatonic gas in 1.5 L container  has a pressure of 24.2 atm at 355K. What is…

A: according to ideal gas law , PV=nRT where, P=pressure in atm V= volume in liters but n=no of…

Q: A helium balloon at sea level has a volume of 2.10 L at 0.998 atm and 36.1oC. If it is released and…

A: We have given that  Initial volume of He gas= V1 = 2.10L Initial pressure of He gas=P1 = 0.998atm…

Q: A gas mixture is made by combining 7.1 g each of Ar, Ne, and an unknown diatomic gas.  At STP, the…

A: The mass of each Ar, Ne and unknown diatomic gas present in mixture is 7.1 g. The volume occupied by…

Q: A sample of an unknown gas is found to have a density of 2.23 g/L at a pressure of 1.10 atm and a…

A: Temp = 39 °C = 39 + 273.15 = 312.15 K Pressure = 1.10 atm density = 2.23 g/L

Q: A 40.0 g gas sample occupies 11.20 L at 1.00 atm and 273.15K. What is the molar mass (in grams/mol)…

A: Given Datas ; m = 40.0 g V = 11.20 L P = 1.0 atm T = 273.15 K  R = 0.0821 L.atm/mol.K M = ?

Q: A mixture of helium and argon gases, in a 8.78 L flask at 82 °C, contains 0.829 grams of helium and…

A: Given: Mass of helium= 0.829 g Mass of argon= 15.1 g Volume= 8.78 L Temperature= 82°C =355.15 K

Q: A sample of carbon dioxide gas at a pressure of 948 mm Hg and a temperature of 27°C, occupies a…

A:

Q: A sample of gas occupies a volume of 474.3 mL at 0.937 atm and 13 oC. Determine the pressure of this…

A:

Q: A sample of neon gas at a pressure of 975 mm Hg and a temperature of 88 °C, occupies a volume of…

A: Use Charles' law to solve the problem, At constant pressure, when the gas is heated or cooled the…

Q: mixture of unreacted gas which consists of 21 g of nitrogen gas and 6 g of hydrogen gas is placed in…

A:

Q: 3.55 g sample of an unknown gas at 33 degrees Celcius and 1.10 atm is stored in a 2.55 L flask. What…

A: The density of the gas present in the flask can be calculated by diving its mass by volume.

Q: A helium-filled weather balloon has a volume of 655 L at14.9°C and 757mmHg. It is released and rises…

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

Q: A 0.916 gram sample of an unknown gas is found to occupy a volume of 0.789 L at a pressure of 515 mm…

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Q: An unknown gas is found to have a density of 0.4283 g L- at 33.25 °C and 204.86 mm Hg. What is the…

A: 11.  Ideal Gas Law :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas n is the…

Q: A sample of xenon gas occupies a volume of 6.95 L at 493K. If the pressure remains constant , at…

A: The xenon gas sample is given at - Volume, V1 = 6.95 L  Temperature, T1 = 493 K Volume, V2 = 3.77 L…

Q: 2.2 L of He gas at 7.6 atm pressure and 25oC and 3.8L of Ne gas at 4.2 atm pressure and 25oC are…

A: Given, Volume of He gas = 2.2 L Pressure = 7.6 atm Temperature = 25◦c   Volume of Ne gas = 3.8 L…

Q: A reaction occurs, producing an oxide of nitrogen as a gas. the gas has a mass of 1.211g and…

A: Given that -  Mass of the oxide of Nitrogen gas = 1.211 g  Volume = 677 mL = 677/1000 L = 0.677 L…

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.