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: A cylinder is filled with  10.0L  of gas and a piston is put into it. The initial pressure of the…

A: We have to calculate the final pressure of gas

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A:

Q: What pressure, in atmospheres, is exerted on the body of a diver if she is 36 ft below the surface…

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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: L Sketch of a gas-collection apparatus Calculate the mass of CO that is in the collection tube.…

A: Given,Final Volume of CO gas = 112. mLTemperature = 55.0 oC

Q: Consider a gas cylinder with a volume of 1.6 L that contains 28.07 g of CH4gas. What is the total…

A: Please see the attached image for the solution.   If there are queries or if the image is not…

Q: A cylinder is filled with 10.0L of gas and a piston is put into it. The initial pressure of the gas…

A:

Q: A 6.75 g sample of potassium chlorate (KClO4) is heated and decomposes into potassium chloride and…

A: Using Dalton's law of partial pressure to fins oxygen's partial pressurePtotal = PO2 + PH2O    and…

Q: A.) What is the initial pressure of a gas if it occupied a volume of 375 mL but now occupies a…

A: A). Given: Initial volume, (V1)=375mL = 0.375 mL. Final volume, (V2)=1.25 L Initial pressure,…

Q: Match the characteristic of gases described below to the postulates of the kinetic molecular theory…

A: The characteristic "gases are highly compressible" is best explained by the kinetic molecular theory…

Q: Helium is collected over water at 25°C and 1.00 atm total pressure. What total volume of gas must be…

A: Given:Total pressure 1atm = 760 torr.Temperature = 25°C = 273.15 K + 25 = 298.15KMass of Helium =…

Q: 27. Sodium metal reacts explosively with water to produce sodium hydroxide and hydrogen gas. When…

A: The balanced Chemical equation given in the question is -   2Na + 2H2O -----> 2NaOH + H2…

Q: A bubble at the bottom of a pond has a volume of 0.75 mL. The temperature and pressure at the bottom…

A: Ideal gas equation: PV = nRTwhere P is pressure, V is volume, n is moles of gas, R is the molar gas…

Q: 3. In some cases, the relationship between two variables is not linear, but the data can be…

A: The relationship between pressure and volume at a constant temperature is given by Boyle's law.…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A: Temperature = 45.0 oCVVolume of gas = 116 mL

Q: A car tire was inflated to a pressure of 24 lb in-2 (also known as PSI) on a winter's day when the…

A:

Q: In an experiment as described in the Principles section, 158 mL of O2 is collected over water. The…

A: Volume of O2 = 158 ml Mass of O2 =0.207 gm  Total pressure = 754 mm Vapour pressure of H2O at 290 K…

Q: ired to decrease the volume of the gas sample to 7.44 L, p 0.540 atm, the temperature of the gas…

A: Initial Volume = 9.40 L Initial Temperature =53 °c = 326 K Initial pressure = 0.440 atm Final…

Q: A SCUBA driver is 100 ft below the surface of the ocean where the water exerts a pressure 43.3 psi…

A: Intial (below surface)    final ( at surface)  P1 =   43.3 psi                P2 = 1.03 psi…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A:

Q: The rate of effusion of a particular gas was measured and found to be 24.0 mL/min. Under the same…

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Q: A reaction between liquid reactants takes place at 16.0 °C in a sealed, evacuated vessel with a…

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Q: A particular balloon can be stretched to a maximum surface area of 1257 cm². The balloon is filled…

A: Given ,     A particular balloon can be stretched to a maximum surface area (A)  of 1257 cm². The…

Q: 10.0L

A: We will use Boyle's law

Q: A piece of dry ice (solid carbon dioxide) with a mass of 25.0 g sublimes (converts from solid to…

A: Mass of carbon dioxide = 25.0 g

Q: Helium is collected over water at 25°C and 1.00 atm total pressure. What total volume of gas must be…

A:

Q: A snorkeler takes a syringe  filled  with  16 mL of air  from the surface, where  the pressure is…

A: Given: P1 = 1 atm  V1 = 16 mL V2 = 7.5 mL To find: P2 =? depth of the snorkeler =?

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A:

Q: The barometric pressure in Madison, Wisconsin (elevation 873 ft or 226 mm), averages about 29.2…

A: The barometric pressure measured = 29.2 inHg

Q: A sample of Ar gas has a pressure of 3.93 atm at 277.82 K. What will be the pressure of the gas when…

A: Given,  Initial pressure, P1 = 3.93 atm  Initial temperature, T1 = 277.82 K  Final temperature, T2 =…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A:

Q: metimes in lab we collect the gas formed by a chemical reaction over water (see sketch right). This…

A:

Q: B. In the following graphs, velocity represents the molecular speed, A Relative number of molecules

A:

Q: A free diver takes a 1.50L breath of air at a temp of 25 degrees celsius and pressure of 1.02 atm.…

A: The relationship between pressure, volume and temperature is shown below,

Q: The volume of a sample of pure HCl gas was 189 ml at 25°C and 108 torr. It was completely dissolved…

A: Given that,  Volume of HCl gas = 189ml = 0.189L Pressure = 108torr = 0.142atm Temperature = 25°C =…

Q: ometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A:

Q: A fixed amount of gas in a capped syringe at 7 C has a volume of 12.0 mL. After heating the gas in a…

A: Initial temperature T1 = 7 °C = 7 + 273 K = 280 K Initial volume V1 = 12.0 mL Final temperature T2 =…

Q: A certain amount of chlorine gas was placed inside a cylinder with a movable piston at one end. The…

A: Given that: Initial volume of gas = 3.00 LFinal volume of gas = 1.00 LInitial pressure of gas = 1.25…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A:

Q: A balloon that is filled with gas was released at ground level where the pressure was 751.0 mmHg and…

A: Given data from the questionAt initial state of balloon pressure (P1) = 751.0 mmHgTempreture (T1) =…

Q: A reaction between liquid reactants takes place at 33.0 °C in a sealed, evacuated vessel with a…

A: Given, Temperature of vessel, T = 33.0 oC = 306 K Volume of Vessel, V = 20.0 L Mass of carbon…

Q: Find the temperature in ˚ C of 0.792 moles of hydrogen gas with a volume of 18639 mL collected at a…

A: Answer:- This question is answered bt using the simple concept of calculation of temperature using…

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.