If a scuba diver inhales 0.50 L of air at a depth of 100. ft and 4.0 atm pressure, what volume does this air occupy at the surface of the water, assuming air pressure is 1.0 atm? When a scuba diver must make a rapid ascent to the surface, he is told to exhale slowly as he ascends. How does your result support this recommendation?

Q: 3. A sample of gas has a volume of 78.5 mL at 45 "C. What volume will the sample occupy at 0 'C when…

A: The given problem can be solved by using the formula given below as; V1T1 = V2T2…

Q: A chemist prepared a sample of hydrogen bromide and found that it occupied 245 ml at 830C and 600…

A: Note:- As per bartleby guidelines, I need to solve the first question in case of multiple questions.…

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: Given: V1=2.10 L P1=0.998 atm. V2=? P2=0.900 atm

Q: A. A sample of hydrogen gas at a pressure of 0.891 atm and a temperature of 25.7 °C, occupies a…

A: A . P1P2=V2V10.891 1.24=V2789V2=789×0.8911.24=702.91.24=566.85 ml  The problem based Boyels law…

Q: 45. A piece of dry ice (solid carbon dioxide) with a mass of 28 8 . sublimes (converts from solid to…

A: The mass of carbon dioxide is = 28.8 g The temperature of the gas is = 22oC = 22oC+273.15 = 295.15 K…

Q: elemental gas has a mass of 10.3 grams. If the volume is 58.4 L and pressure is 758 torr at a…

A: Mass=10.3g Volume = 58.4 L Pressure = 758 torr = 758 / 760 = 0.9974 atm ( 1 atm = 760 torr)…

Q: A 75.0-mL sample of oxygen has a pressure of 1.50 atm. What will be the new volume, in milliliters,…

A: The pressure of a fixed amount of gas changes inversely with its volume (if the temperature is…

Q: A scuba diver dives down to 15 m, where the pressure is 2.5 atm.  The scuba diver then inhales 250.…

A: Given, Pressure, P1 = 2.5atm. Volume, V1 = 250mL Pressure, P2 = 1atm.

Q: A sample of nitrogen dioxide gas has a volume of 1.50 L at 23 o What volume, in L, will this gas…

A: Given Initial Volume (V1) = 1.50 L            Initial Temperature(T1) = 23°C = 296K           Final…

Q: balloon filled with helium has a volume of 30.0L at a temperature of 25.0C. What will the volume of…

A:

Q: A balloon contains 125 L of air at 35oC.  What will the new volume of the balloon be if the…

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

Q: A 2.02 g sample of aluminum reacts with excess of HCl(aq), and the liberated hydrogen gas is…

A: Given,  2Al(s) + 6 HCl(aq) -------> 2 AlCl3(aq) + 3 H2 (g)  The mass of Al = 2.02 g.   At…

Q: A sample of methane gas at a pressure of 0.740 atm and a temperature of 24.7 degrees C, occupies a…

A:

Q: A sample of oxygen occupies 481 mL when the pressure is 797 mm Hg. At constant temperature, what…

A: We know as per Boyle's law,  At constant temperature,  P1V1 = P2V2   Where P1 is initial pressure,…

Q: a child has a balloon with a volume of 0.88 L where the atmospheric pressure is 610 mm Hg if she…

A:

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: If I have 5.6 liters of gas in a piston at a pressure of 1.5 atm and then compress the gas until its…

A: Initial Volume of gas = 5.6 L Initial pressure of gas = 1.5 atm Final Volume of gas = 4.8 L Final…

Q: Classify each of the following as being characteristic of effusion or diffusion. A. The mixing of…

A: Diffusion starts when gases dispersed throughout a container. Effusion occur when a gas passes…

Q: What mass of potassium nitrate is needed to generate 231.0  L of gas, composed of 107.0  L of N2 and…

A: Given :  Temperature T = 289 K Pressure P = 0.920 atm Volume of N2 formed = 107.0 L Volume of O2…

Q: What is the volume, in L, occupied by a mixture of 16.0 g Ne(g) and 42.0 g Ar(g) at 15.0 atm…

A:

Q: A sample of methane gas at a pressure of 1.15 atm and a temperature of 281•C, occupies a volume of…

A: T1=281°C=(281+273)K=554K V2=448mL=0.448L V2=339mL=0.339L T2=?

Q: A mixture of hydrogen and helium gases, at a total pressure of 821 mm Hg, contains 0.287 grams of…

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: A 1.0-L container of liquid nitrogen is kept in a closet measuring 1.0 m by 1.0 m by 2.0 m. Assuming…

A:

Q: If someone takes a breath and the lungs expand from 4.5 L to 5.6 L in volume, and the initial…

A:

Q: A sample of hydrogen gas occupies 240 mL at 27°C and 0.865 atm pressure.  What is its volume (in mL)…

A: The relationship between the pressure, volume, temperature and number of moles of a gas is given by…

Q: If I have 5.6 liters of gas in a piston at a pressure of 1.5 atm and compress the gas until its…

A:

Q: A sample of helium gas at a pressure of 699 tor and a temperature of 23.4 C,occupies a volume of 789…

A: Given: Initial pressure = 699 torr Initial volume = 789 mL And final pressure = 1.05 X 103 torr =…

Q: Another balloon is inflated to a volume of 1.250 L with dry hydrogen gas, at 28.0 °C. The balloon is…

A: Here, pressure is constant during the process.  Hence, Chales law is applicable

Q: A sample of neon gas at a pressure of 1.19 atm and a temperature of 27.0 °C, occupies a volume of…

A:

Q: A 3.50 g mixture of zinc and magnesium reacted with a dilute hydrochloric acid to produce 2.470 L of…

A:

Q: A car engine at room temperature of 25.0 Celsius, 1.00 ATM pressure and 1.03 L started resulting in…

A:

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

A: Gay Lussac's law states that at constant volume, the pressure of the gas is directly proportional to…

Q: A balloon is filled with a gas to a certain volume at a certain pressure at 22.2°C. If the pressure…

A: Given: initial temperature = 22.2 oC = 295.35 K Let initial pressure (P1) = P   Final pressure (P2)…

Q: An unknown amount of hydrogen gas fill a 1.5 L balloon at 868 torr while at 92.1 °F. What would the…

A: The new volume of the balloon can be calculated by - V1/T1 = V2/T2 Here, V1 = initial volume of the…

Q: A balloon is filled with a gas to a certain volume at a certain pressure at 36.5°C.  If the pressure…

A:

Q: A fovorite demonstration in introductory chemistry is to illustrate how the volume of a gas is…

A: According to Charle’s law, at constant pressure the volume of the gas is directly proportional to…

Q: 270-mL flask contains pure helium at a pressure of 759 torr . A second flask with a volume of 455 mL…

A: Given conditions  Volume of He flask = 270mL Volume of Ar flask = 455 mL Pressure of He = 759 torr…

Q: When a sample of neon with a volume of 634 mL and a pressure of 0.896 atm was heated from 18.0 to…

A:

Q: A sample of ammonia (NH3), a colorless gas with a pungent odor, occupies a volume of 8.00 L at a…

A:

Q: A sample of 30.0 mL of krypton gas, Kr, is at 756 mm Hg and 25.0°C. What is the new volume if the…

A: Given :- initial pressure = 756 mm Hg  Initial volume = 30.0 mL  Initial temperature = 25.0°C  Final…

Q: A sample of hydrogen gas at a pressure of 1.03 atm and a temperature of 24.3 °C, occupies a volume…

A:

Q: Since helium is lighter than air, it is difficult to measure the mass of a sample, so to find out…

A:

Q: An engine cylinder contains 250 mL of gas at a pressure of 1.0 atm. As the engine runs, it…

A:

Q: A 10.5 L balloon contains helium gas at a pressure of 655 mmHg. What is the final pressure, in…

A: GivenVolume of ballon = V = 10.5 LPressure of ballon = P =  655 mmHg

Q: 7.75 g of SO2 is added, at a constant temp and volume, to 5.87 L of SO2 at 705 mmHg and 26.5 degrees…

A: The pressure of a gas in a container is due to collision of molecules of gas with the container.the…

Q: A sample of helium occupies 1820 mL at 719 mmHg. Part A: Assume that the temperature is held…

A:

Q: Natural gas is a mixture of hydrocarbons, primarily methane (CH4) and ethane (C2H6). A typical…

A:

Q: The hydrogen gas formed in a chemical reaction is collected over water at 30 °C at a total pressure…

A:

Q: If a deep-sea diver has 0.050 Liters of gas in his blood under a pressure of 250 atm, then rises…

A: According to Boyel’s law, At constant temperature the volume of a given gas in inversely…

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.