A scuba diver's tank contains 0.250kg of O2 compressed into a volume of 3.10L. What volume (in liters) would this oxygen occupy at 27 degrees Celsius and 0.910atm?

Q: How many grams of water vapor would be required to occupy a 617 mL flask at 0.950 atm and 94.7…

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Q: A sample of N2 gas occupies 1.77 L at 25.5 °C. If the gas is in a container that can contract or…

A: At contact pressure , volume is directly proportional to temperature ,so  V/T = Constant

Q: Arterial blood contains about 0.25 mg of oxygen per milliliter. What is the pressure exerted by the…

A: The pressure exerted by Oxygen in One litre of Arterial at Normal Body temperature can be calculated…

Q: A vessel with a volume of 26.9 L contains 2.80 g of nitrogen gas, 0.605 g of hydrogen gas, and 79.9…

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Q: A given volume of nitrogen, N2, required 68.3 mL to effuse from a hole in a chamber. Under the same…

A: Given  rate of N2 = 68.3 s rate of another gas = 85.6 s molar mass of N2 = 28.01 amu  Graham's law…

Q: If 22.5L of nitrogen at 748mm Hg are compressed to 725mm Hg at constant temperature, what is the new…

A: According to Boyle’s law:

Q: A gaseous sample occupies 32.4 mL at −23°C and0.75 atm. What volume will it occupy at STP?

A: The combined gas law describes the correlation among a fixed amount of gas's volume, pressure and…

Q: If 320 mL of nitrogen at 34.6 oC and 641 torr is allowed to expand to 810 mL and 572 torr, what is…

A: Given, nitrogen gas different conditionsinitial pressure Pi =641 torrinitial volume Vi =320…

Q: A sample of ammonia gas has a volume of 60.0 mL at STP.  What is the Celsius temperature if the…

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Q: What is the molar mass of 1.87 g of a gas that occupies 1.3 gallons at 135 °F and 8.9 psi?

A: Given data is as follows: The mass of the gas = 1.87 g The volume of the gas = 1.3 gallons The…

Q: The compound is oxidized and the chlorine in the substance is converted to chlorine gas. if 40 mg of…

A: Given :  Volume = 12 m3  Pressure = 1 atm  Temperature = 25°C = 298 K  Final pressure = 1 atm  Final…

Q: What is the density (in g/L) of carbon tetrachloride (CCl4) vapor at 728 mm Hg and 120 °C ?

A: It is given that CCl4 has a vapour pressure of 728 mmHg and is at a temperature of 120°C, The…

Q: 4. When I was in Antarctica, we celebrated the turn of the new millennium with a party. We blew up…

A: It is given that the initial temperature of filling the balloons is 19°C (292.15 K) with the initial…

Q: If it takes 6.14 seconds for 16.3 ml of C,H,(g) gas to effuse through a pinhole into a vacuum, how…

A: Graham's law of effusion:- under similar conditions the rate of effusion of a gas is inversely…

Q: The atmospheric pressure on Mount Logan in the Yukon is 520. mbar. What is the pressure in torr?…

A: The given unit conversion can be done by using following relation: 1 bar = 750.062 torr

Q: What is the mass of neon that exerts a pressure of 720. mmHg, with a temperature of -15.0 °C, when…

A: Neon is an ideal gas. To get the mass of neon, use ideal gas equation. Ideal gas equation…

Q: A sample of neon gas at a pressure of 774 mm Hg and a temperature of 44 °C, occupies a volume of…

A: Here given--- Initial Pressure (P1) = 774 mmHg = (774/760) atm = 1.018 atm Initial Volume (V1) =…

Q: A sample of NO2 gas has a volume of 1.50 L at 23 oC. What volume, in L, will this gas occupy at 123…

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Q: Under constant pressure conditions a sample of hydrogen gas initially at 23.00 degrees Celsius and…

A: According to Charles law, at constant pressure the volume and temperature are directly proportional.

Q: What is the new volume, when a balloon that had an initial volume of 0.45 L at 22C, is heated to 47…

A: According to Charles's law, the volume of the gas increases when the temperature of the gas…

Q: What is the volume, in liters, of 4.00  moles of methane gas, CH4, at 18 Celsius and 1.40atm

A: Given, Number of moles of  methane (CH4) gas =4.00 molpressure of gas =1.40 atmtemperature of gas…

Q: Unit 11 Q#8 Methanol, CH,OH, burns in oxygen to form carbon dioxide and water. What volume of oxygen…

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Q: At what temperature (in K) does NH3 have a density of 0.812 g/L at 1.17 atm?

A: Given density of NH3 (d) = 0.812 g/L Given pressure (P) = 1.17 atm Molar mass of NH3 = 17.03 g/mol

Q: If it takes 6.14 seconds for 16.3 mL of C3Ha(g) gas to effuse through a pinhole into a vacuum, how…

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Q: To what temperature must neon atoms be cooled so that they have the same rms speed as N2 molecules…

A: we have   vrms=3RTM   Equating (v)rms for Ne and N2, we have (v)rms(Ne) = (v)rms N2…

Q: What volume will 2.09 moles of nitrogen occupy at 0.947 atm and 20.0 degrees celsius?

A: Given that,  Moles of nitrogen gas n = 2.09 moles Pressure P = 0.947 atm Temperature T = 20°C  = 293…

Q: The gill is an obscure unit of volume. If some H2(g) has avolume of 17.4 gills at 100°F, what volume…

A: Step : 1              What volume would it have if the temperature were reduced to 0°F ?

Q: 5. To what temperature must a gas sample at 20°C be heated in order to double its volume?

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Q: To what temperature must a balloon initially at 25 degrees Celsius and 2.00 L, be heated in order to…

A: Initial temperature T1 =25°C                            T1 = (25+273)K…

Q: If 3.20 g of O2 gas occupies a volume of 2.24 L at 0°C and a pressure of 1.00 atm, what volume would…

A: As per Avogadro's law same volume of all gases will contain same moles at constant temperature and…

Q: what pressure would 10.0 g of oxygen gas exert in a 2.5 L container at 25 degrees celsius?

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Q: How many grams of water vapor would be required to occupy a 517 mL flask at 0.980 atm and 89.6…

A: Ideal gas equation: The temperature, pressure, volume, and mole of the gas are related by the ideal…

Q: A 5.96 L sample of neon gas is stored at 27.4 °C. What will the temperature be in °C when the volume…

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Q: If it takes 6.14 seconds for 16.3 mL of C₃H₈(g) gas to effuse through a pinhole into a vacuum, how…

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Q: At constant pressure, to what temperature in degrees C must 25.5 mL of gas at 100 degrees C be…

A: At constant pressure, the temperature in °C up to which a 25.5 mL of gas at 100 °C is cooled so that…

Q: If a tank contains 453 mol of propane, what volume of propane gas could be supplied at 22°C and…

A: Given the pressure of propane gas is --- 14.22psi  Temperature T=22oC The number of moles of propane…

Q: The density of liquid octane, C8H18, is 0.7025 g/mL. If 1.00 mL of liquid octane is vaporized at…

A: Data given: Density of octane = 0.7025 g/mL Volume of octane = 1.00 mL Temperature, T = 100 °C =…

Q: If o.1oo mol of argon gas occupies 2.15 L at 725 mm Hg, what is the temperature in degrees Celsius?

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Q: How many grams of propane gas (C3Hg) are needed to pressurize a 12.2 L container to 3.4 atm at a…

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Q: 5. A volume of gas inside a balloon contracts from 6O L to 55 L. The temperature of the gas before…

A: From idealngas equation  PV = nRT

Q: what volume would it occupy at 125 degrees Celsius and 2.5 atm?

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Q: 8 %24 # m 7. 9 4 %23 V 2 IIO L. If a balloon containing 2.6 L of gas at 25°C is cooled to -85°C,…

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Q: What pressure permits 25.0 cm3 of neon at 735 mmHg to expand to a volume of 40.0 cm3?

A: The initial volume of neon, V1=25.0 cm3 The initial pressure of neon, P1=735 mmHg The final volume…

Q: If it takes 3.52 seconds for 10.0 mL of helium to effuse through a hole in a container at a…

A: Given : Time required by helium to effuse = 3.52 s Volume of helium i.e He effused = 10.0 mL And…

Q: What pressure was exerted on the inflated beach ball for it to change its volume from 25.0-liters at…

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Q: What is the density of ammonia gas in a 4.32 L container at 837 torr and 45.0 degrees Celsius?

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Q: A 14.0 g sample of N2 (g) occupies what volume at 0 degrees C and 1.00 atm?

A: First the given grams of N2 is converted into moles.

Q: At what pressure (in mm Hg) does a gas occupy 2.75 L at 323 K if the gas occupies 1.97 L at 223 K…

A: Given,  V2 = 2.75 L T2 = 323 K P2 = ? V1 = 1.97 L T1= 223 K and P1 = 945 mm Hg

Q: If 1.80 molmol of helium gas occupies 5.10 LL at 2.30 atmatm, what is the temperature in degrees…

A: Number of moles of He = 1.80 mol V = 5.10 L P = 2.30 atm

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.