Dichlorodifluoromethane (CCl2F2, MW = 120.91 g/mol) is a refrigerant and aerosol spray propellant that is commercially known as Freon-12.  What is the density of CCl2F2 at 878 torr and 32.0°C?

Q: A gas sample occupies 350.0 mL at 24oC and 755 Torr. What is its volume in mL at STP? 1 atm = 760…

A: An ideal gas is a hypothetical gas where gas molecules moves randomely without any interparticle…

Q: If 150.00 mL of N2 gas was collected at 760 torr, what is the new volume of the gas when the…

A:

Q: a sample of oxygen occupies 47.2 liters under a pressure of 1240 torr at 25 degree celsius.What…

A:

Q: What is the temperature of an 11.2-L sample of carbon monoxide, CO, at 744 torr if it occupies 13.3…

A: At constant pressure,  V1/T1 = V2/T2

Q: Imagine four clouds of gas that are all held at a temperature of 100 K, but each cloud is made of a…

A: Given chemical species with their molecular masses: Chemical Species Molecular Mass (amu)…

Q: A gas mixture contains HBr, NO, and C,H, at STP. If a tiny hole is made in the container, which gas…

A: The molar mass of the gases: NO2---->46gmol-1 C2H6--->30gmol-1 HBr----->80.91gmol-1 At STP…

Q: Convert 446,000 pascal, pa into torr

A: Given :- pressure = 446,000 Pa   To convert :- 446,000 Pa to torr  1 atm = 760 torr = 760 mmHg =…

Q: Oxygen gas occupies 500 mL at 200C and 760 mm Hg. If the total pressure of another container is at…

A:

Q: Phosphorus trichloride is important in the manufacture of insecticides, fuel additives, and flame…

A: To find: (a) What different molecular masses (in amu) can be found for PCl3? (b) Which is the most…

Q: High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to purify…

A: Answer:- This question is answered by answered by using the simple concept of dimensional analysis…

Q: Acetylene (C₂H₂, an important fuel in welding, is produced in the laboratorywhen calcium carbide…

A: The formation of acetylene takes place as follows: Total pressure is due to the partial pressure of…

Q: Atmospheric pressure on the peak of Mt Everest can be as low as 150 torr, which is why climbers need…

A: Boyles law :-  Pressure of fixed mass of a gas is inversely proportional to volume at constant…

Q: A container with a closed pinhole contains 1 mol of H2(g) and 1 mol of He(g). When the pinhole is…

A: This problem is based on the Graham's diffusion law according to which the rate of effusion of any…

Q: at 15C the volume of ammonia gas at 760 torr is 20.0L. What is the volume in the unit of L at 50C…

A: This quetion is based on combined gas law equation.. Calculation is as shown below

Q: A 250.0-mL sample of ammonia, NH3(g), exerts a pressure of 833 torr at 42.4°C. What mass of ammonia…

A: The can be calculated from the known values of molar mass and no of moles. Mass=molar mass×no of…

Q: ) 0.360 g of a diatomic gas occupies 125.0 mL at 23.0oC and 750. Torr. What is the molar mass of the…

A:

Q: Calculate the total container pressure for a container containing 1250 torr CH4, 2550 torr C3H8, and…

A: As per the given information partial pressure of the CH4 is 1250 torr partial pressure of the C3H8…

Q: A sample of a gas occupies 1600. milliliters at 20.0 oC and 400. torr. What volume will it occupy at…

A: Given data contains, Initial volume (V1) is 1600 mL. Initial pressure (P1) is 400 torr. Final…

Q: A gas sample occupies 350.0 mL at 24 degree C and 755 torr. What is its volume in mL at STP

A: Initial volume of the gas (V1)  350.0 ml = 0.350 L  Initial temperature (T1) = 24°C = 24 + 273.15 =…

Q: A sample of a gas occupies 160.0 mL at -10.0?C and 620. torr. What pressure will the gas exert in a…

A:

Q: Consider three identical flasks filled with different gases. Flask A: CO at 760 torr and 0°C Flask…

A:

Q: In an underground natural gas reserve, a bubble of methane gas, CH4, has a volume of 45.0 mL at 1.60…

A: As per ideal gas law  PV = nRT  where P = pressure  V = volume  n =moles  R = gas constant T =…

Q: 65 g of CaC2 is treated with 38 g of H2O. What volume of C2H2 gas, measured at 22˚C and 770 torr…

A: Acetylene is common gas and has a wide application in industry. It is synthesized by easy way using…

Q: . If 153.5 mL of CO2 are collected at 14°C, 723.0 torr, what will its volume be at STP? In a…

A:

Q: A gas mixture contains HBr, NO,, and C,H, at STP. If a tiny hole is made in the container, which gas…

A:

Q: A container with a closed pinhole contains 1 mol of H2(g) and 1 mol of He(g). When the pinhole is…

A: In this question we have to calculate the rate of effusion of helium gas. Effusion is the process in…

Q: 8.An organic compound was analyzed and found to contain 55.8% C, 7.03% H, and 37.2% O. A 1.500 g…

A: Given, C = 55.8% H = 7.03% O = 37.2% mass of the compound = 1.5 g   m(x) = m(compound) × %(x),…

Q: 9.562×10-4 mol of SF6(g) (sulfur hexafluoride gas) is generated into a 192.0 mL headspace, at 25.0…

A: The molar volume of the gas can be calculated by the ideal gas equation which is PV=nRT, where P, n,…

Q: In 1783, Jacques Charles launched his first balloon filled with hydrogen gas, which he chose because…

A:

Q: The volume of a balloon is 2.85 L at 1.00 atm. What pressure is required to compress the balloon to…

A:

Q: 8.An organic compound was analyzed and found to contain 55.8% C, 7.03% H, and 37.2% O. A 1.500 g…

A: Given: Mass percent of compound = 55.8 % Mass percent of H = 7.03 % Mass percent of O = 37.2 % Mass…

Q: helium-neon lasers contain a low pressure mixture of helium and neon gases. how many times greater…

A: A question based on root mean square velocity, which is to be accomplished.

Q: 1-What is the molar mass of a gas if 12.0 g of the gas occupies 197L at 3.80x102 torr and 127 oC?

A:

Q: A 10 L container holds a mixture of 5 gases at 0°C. The composition of the mixture is given below.…

A: Given data,Volume=10LTemperature=0oC=273K

Q: When two cotton plugs, one moistened with ammonia and the other with hydrochloric acid, are…

A: 51.7cm distance travelled by NH3.

Q: Use the data below from a Dumas experiment using CCI4 to determine the atmospheric pressure (in…

A: The expression of ideal gas equation is shown below: PV = nRT Where; P = pressure V = volume n =…

Q: Q1. An organic chemist isolates a colourless liquid from a petroleum sample. She places the liquid…

A: Solution - According to the question - Given -  P = pressure = 754 torr = 0.992atm V = Volume =…

Q: Acetylene, C2H2, is produced in the laboratory when calcium carbide, CaC2 reactswith water according…

A: The given reaction is : CaC2 + 2H2O -----------------> C2H2 +Ca(OH)2 The total pressure is the…

Q: A sample of dichloroethane, a dry cleaning solvent, is vaporized into a 266.4 mL flask at 99.8 oC.…

A: Given values: Pressure =  745.3 Torr Volume = 266.4 mL  Mass of dichloroethane = 0.8447 g…

Q: The complete combustion of methane, CH4, can be represented by the equation         CH4 (g) + 2 O2…

A:

Q: Consider the three flasks in the diagram below. What is the partial pressure of each gas and the…

A: Given :  For He gas :  Volume = 1.0 L  Pressure = 200 torr  For Ne gas :  Volume = 1.0 L  Pressure =…

Q: Consider the formation of nitrogen dioxide from nitric oxide and oxygen:  2 NO(g) + O2(g) → 2 NO2(g)

A: The chemical reaction is : 2NO(g) + O2(g) --->  2NO2(g) According to the balanced chemical…

Q: The molecular diameter of CO is 3.19 x1 0^-8 cm. At 295 Kelvin and a pressure of 100 mm Hg, the…

A:

Q: Aluminum metal reacts with hydrochloric acid to produce hydrogen gas. 2 Al (s) + 6 HCl (aq) --> 2…

A:

Q: A piece of solid carbon dioxide, with a mass of 7.8 g, is placed in a 4.0-L otherwise empty…

A: Given: Mass of carbon dioxide = 7.8g Volume of the container= 4L Temperature = 27°C= 27 + 273 = 300K

Q: 18 Complete this table: V, T, V, T, P2 1. 546 L 43°C 6.5 atm 65°C 1.9 atm 43 mL -56°C 865 torr 43°C…

A: The given table can be completed using the combined gas law. P1V1T1=P2V2T2

Q: A certain gaseous hydrocarbon is found to be 82.6% C and 17.4% H by mass. The compound has a density…

A: Empirical formula- the formula of compound which represent simplest whole number ratio of elements…

Q: A piece of dry ice (solid carbon dioxide) with a mass of 25.5 g sublimes (converts from solid to…

A: According to ideal gas equation,  PV = nRT V = (nRT÷P) n = moles = (given mass ÷ molecular mass)

Q: A container with a closed pinhole contains 1 mol of He(g) and 1 mol of Ne(g). When the pinhole is…

A: To calculate the rate of effusion of Ne(g) if the rate of effusion of He(g) is 0.54 mol/h.

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.