a scuba diver exhales 1.85 L of air while swimming at a depth of 65.70 m where the sum of atmospheric pressure and water pressure is 7.35 atm. by the time this exhaled air rises to the surface, where the pressure is 1.00 atm, what is its volume?

Q: A 1.35 g sample of an unknown gas at 43 ∘C and 1.10 atm is stored in a 1.45 L flask. What is the…

A: The density is calculated by using given mass and volume.

Q: At what altitude does the atmospheric pressure drop from 760 Torr to 560 Torr at 25°C? (Molecular…

A: Given, initial pressure =760 torrand final pressure =560 torrtemperature =25 °Cmolecular weight of…

Q: At what temperature will the volume of a gas at 0°c double itself, pressure remaining constant?

A:

Q: A 0.704-g sample of a colorless liquid was vaporized in an evacuated 250.-mL flask at 121°C to give…

A: Given information: Mass of sample = 0.704 g Pressure (p) = 786 mmHg Volume (V) = 250 mL Temperature…

Q: A mixture of carbon monoxide and helium gases, in a 71.73 L flask at 75°C, contains 5.66 grams of…

A:

Q: A weather balloon is inflated to a volume of 24.5 L at a pressure of 750 Torr and a temperature of…

A: According to ideal gas law, PV = nRT where P = pressure V = volume n = moles R = gas constant T =…

Q: A 5.0 L sample of gas at 760 torr is compressed at constant temperature to a volume of 4.0 L.…

A: The given data contains, Pressure P1 = 760 torr. Volume V1 = 5.0 L. Volume V2 = 4.0 L

Q: A 0.239 g sample of carbon dioxide, CO2, has a volume of 555 mLmL and a pressure of 488 mmHg .

A: Given: Mass of carbon dioxide (CO2) = 0.239 g Volume (V) = 555 mL=0.555 L Pressure (P)= 488 mmHg To…

Q: A gas mixture composed of helium and argon has a density of 0.670 g/L at a 755 mmHg and 298 K. What…

A: Any unknown variable like volume (V), moles (n), or pressure (P) get evaluated through the…

Q: Calculate the partial pressure of hydrogen gas collected over water if partial pressure of water at…

A: Dalton's law: Dalton's law of partial pressures states that in a mixture of non-reacting gases, the…

Q: A 275-mL flask contains pure helium at a pressure of 752 torr. A second flask with a volume of 475…

A: Ideal gas law is given as: PV=nRT

Q: If helium gas at 1.5 atm and 20°C is allowed to expand from 259 mL to 757 mL without changing the…

A: Given P1 = 1.5 atm  V1 = 259 ml P2 = ? V2 = 757 ml

Q: Consider the following samples of gases: If the three samples are all at the same temperature,…

A: The moles of gases present in the three samples are: At constant temperature and volume, the…

Q: If the mercury in a manometer raises 43.0 millimeters due to a change in pressure, what is the…

A: Mercury in manometer raises 43.0 millimeter So the pressure is 43.0 mmHg Recall the relation between…

Q: A 2.85-g sample of an unknown chlorofluorocarbon decomposes and produces 564 mL of chlorine gas at a…

A:

Q: How does Dalton's law of partial pressures help us with our model of ideal gases? That is, what…

A:

Q: An ideal gas is allowed to expand from 8.80 L to 48.4 L at constant temperature. By what factor…

A: Given: An ideal gas is allowed to expand from:            V1 = 8.80 L to  V2 = 48.4 L at constant…

Q: Components of Air Mole Fraction Nitrogen 0.781 Окудеn 0.209 Argon 0.010 What is the partial pressure…

A: In a mixture of different gases having total pressure PT, the partial pressure of each gas Pi is…

Q: A sample of nitrogen gas is placed into a container at 200 K. If the temperature of the container is…

A: From ideal gas equation  PV /T = nR  for a particular moles of a gas PV/T  = constant therfore we…

Q: A typical barometric pressure in Kansas City is 740 torr. What is this pressure in atmospheres, in…

A: Given, pressure = 740 torr Conversions required for calculating the pressure in the given units are,…

Q: A sample of gas is stored at 15 atmospheres and has a volume of 5 liters. If the volume of the gas…

A:

Q: A barometer reading gives a pressure of 761 mmHg. What is this value in units of atm?

A: A barometer reading in mmHg scale which is to be converted into atm units.

Q: What will be the new pressure (in mmHg) of hydrogen gas if it was heated to 77 degrees Celsius at…

A: Assuming that Hydrogen behaves ideally , we can use Ideal Gas Law which gives relationship between…

Q: 2. You have a 965 mL sample of methane at 92°C and a pressure of l.29x10° torr. A. How many moles of…

A: Volume of methane = 965 mL = 0.965 L Temperature = 92 oC = 273.15 + 92 = 365.15 K Pressure = 1.29 x…

Q: The mole fraction of CH4 in a mixture of gases is 0.285 with a partial pressure of 0.498 atm. What…

A: The total pressure of a mixture of gases not reacting with each other is equal to the sum of partial…

Q: We find that a mass of 0.896 g of a gaseous compound, containing only nitrogen and oxygen, occupy a…

A: By help of Ideal gas equation, we can calculate the molar mass of given compound , we use Following…

Q: If a gas with a volume of 10mL and a pressure of 236 torrs inside a dewar flask is opened to an…

A:

Q: A piece of magnesium reacts with an aqueous solution of HCl to produce H2 gas. The hydrogen gas is…

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

Q: a student did an experiment wherein she cooled the hot air balloon which was on its way into the…

A: All matter can be classified as solid, liquid and gases mainly. In these physical states of matter,…

Q: A 144.6 mL sample of O2 gas at 509.6 torr is compressed at constant temperature to 87.5 mL. Predict…

A:

Q: What is PRESSURE? What are some of its common units

A: The pressure is one of the properties possessed by a solid, liquid or a gas. The consideration of…

Q: The pressure in car tires is often measured in pounds per square inch (lb/in.2), with the…

A:

Q: The volume of a sample of gas is 200 L at 740 mmHg. What would its volume be if the pressure on the…

A: Given:: P1=740 mmHg, V1=200 L P2=760 mmHg, V2=?

Q: A steel tank contains a mixture of Ar and He gases. If the partial pressure of helium in the tank is…

A:

Q: To what temperature must a sample of nitrogen at 39.2oC and 0.511 atm be taken so that its pressure…

A: Applying formula P1/T1= P2/T2

Q: • A sample of helium gas in a ballon is compressed from 4.0 L to 2.5 L at a conštant temperature. If…

A:

Q: Aerosol cans carry clear warnings against incineration because of the high pressures that can…

A: Given information: P1 = 760 mmHg T1 = 30∘C = 30+273 = 303 K T2 = 1175∘C = 1175+273 = 1448 K

Q: A mixture of gases consists of helium at a partial pressure of 400. torr, neon at a partial pressure…

A: Applying concept Doltons rule P= PHe+ PN2+ PAr

Q: The mole fraction of Ar in a mixture of gases is 0.829 with a partial pressure of 0.341 atm. What is…

A: The partial pressure of an individual gas is equal to the total pressure multiplied by the mole…

Q: An experiment shows that a 111 mL gas sample has a mass of 0.171 g at a pressure of 741 mmHg and a…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: An experiment shows that a 111 mL gas sample has a mass of 0.171 g at a pressure of 742 mmHg and a…

A: As from the question,Volume of gas (V) = 111 mLPressure (P) =742 mmHg.Temperature (T) = 32˚C.Mass of…

Q: A piece of magnesium reacts with an aqueous solution of HCl to produce H2 gas. The hydrogen gas is…

A: Answer: When hydrogen gas is collected over HCl, solution it would also be containing water vapor in…

Q: Aerosol cans carry clear warnings against incineration because of the high pressures that can…

A:

Q: A sample of oxygen gas at 310 K and 1.74 atm occupies a volume of 1.91 L. If the gas is allowed to…

A: According to gas laws, PV = nRT, Where P = Pressure, V = volume, T = temperature, n = no. of moles,…

Q: What do you expect to happen to the  volume of a gas it its temperature is doubled while the…

A: Since you have posted a question with multiple subparts, we will solve the first three subparts for…

Q: if a balloon was filled with 3.5 L of ammonia gas and all of the gas decomposed, what would be the…

A: The ideal gas equation is  PV = nRT  R = gas constant If P and T are constant then from above…

Q: Mass of flask +cap= 96.421g temp. of boiling water= 100 C Mass of flask+ cap+ condensed vapor=…

A: 1) Calculation of the average mass of the flask + cap + vapor: Average mass=97.005 g+96.957 g+96.984…

Q: A sample of oxygen gas is collected by displacement of water at 25 Celsius and 1.21 atm total…

A: Given: Temperature = 25oC Total Pressure = 1.21 atm Vapor pressure of H2O =23.756 mmHg To calculate:…

Q: A weather balloon is inflated to a volume of 24.5 L at a pressure of 750 Torr and a temperature of…

A: The Charles’s law may be stated as the unique case of ideal gas in which the species volume 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.