For scuba dives below 150 ft, helium is often used to replace nitrogen in the scuba tank. If 16.4 g of He(g) and 27.5 g of O2(g) are added to a previously evacuated 4.10 L tank at 20.°C, calculate the partial pressure of each gas present as well as the total pressure in the tank. Partial pressure of He = atm Partial pressure of O2 = atm Total pressure = atm

Q: what pressure in atmospheres will 1.36 kg of N2O gas exert when it is compressed in a 25.0 L…

A: Given: Mass of gas, m = 1.36 kg =1360 g  Volume, V=25.0 L Temperature, T=59 + 273 =332 K Molar mass…

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Q: If a 7.45 L sample of nitrogen at STP is compressed to a volume of 5.81 L and warmed to 295 K, what…

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Q: 32. Equal numbers of moles of CO2 (g), N2(g) and NH3(g) are placed in a sealed vessel at room…

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Q: A sample of CO2 in a 10.0 L gas cylinder at 298 K and 1.00 atm is compressed to a final volume of…

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Q: (6.5)What is the molar volume of argon gas at STP? 15.3 L O 22.4 L O 4.00 L O 1.00 L

A:

Q: A sample of an unknown compound is vaporized at  150.°C . The gas produced has a volume of…

A: T = 150oC = 423.15oK V = 2360 ml = 2.36L P = 1 atm weight = 2.31 g

Q: A mixture of He, Ne, and Ar have a total pressure of 558 mmHg. If the partial pressure of He is 341…

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Q: Using the ideal gas law calculate the following: (a) the volume of 0.510 mol of H2 at 47 °C and 1.6…

A: Here we are asked to calculate,a)  the volume of 0.510 mole of H2 at 47 °C =( 47+273.15)K =320.15…

Q: of total mass 80g. 14% of the total mass is nitrogen. The nitrogen is occupying a volume of 0.995…

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Q: Oxygen gas is collected at a pressure of 123 kPa in a container which has a volume of 10.0 L.  What…

A: By using Ideal gas equation, temperature can be find out.

Q: Two gases are stored in the apparatus below at 29.8°C, with 1.25 atm neon in the smaller (3.00 L)…

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Q: A sample of oxygen is collected over water at 19°C and 753 mm Hg in a 125-mL flask. The vapor…

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Q: At 1°C a 1.0-L flask contains 1.0 x 10-2 mole of N2, 2.0 x 10-2 mg O2, and 3.1 x 1021 molecules of…

A: For O2 2.0 x 10-2 mg, I think its 2.0 x 102 mg, instead of 10-2 mg but I solved the problem with the…

Q: gaseous mixture of O2O2 and N2N2 contains 38.8 %% nitrogen by mass. What is the partial pressure of…

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Q: Consider a sample of helium and a sample of neon, both at 30.0oC and 1.5 atm. Both samples have a…

A: The formula used to predict the incorrect statement as follows,

Q: A sample of 8.8 g of methanol, CH3OH(l), is added to a 1.00 L flask, whereby the flask is sealed and…

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Q: If a sample of gas occupying some volume has a pressure of 1.53 atm at 298 K, what is the pressure…

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Q: A gas sample is prepared in which the components have the following partial pressures: nitrogen =…

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Q: A gas occupying a volume of 850 ml at a pressure of 1 atm is allowed to expand at constant…

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Q: Calculate the pressure, in atmospheres, of 0.100 moles of O2 gas in a 2.00 L container at a…

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Q: What would be the total pressure of a container that is holding SO2(g) with a pressure of 1.385 atm,…

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Q: 2.20 g of C4H9Br was reacted with excess NaOH to make C4H8(g).  The volume of the gas produced was…

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Q: which staement is not true? 1.) A scuba diver should be certain to ascen fast from the dive 2.)While…

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Q: Consider the apparatus shown below with the valve initially closed. The volume and pressure in each…

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Q: Consider the apparatus shown below with the valve initially closed. The volume and pressure in each…

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Q: 1. Exactly 500 mL of a gaseous compound at 70.0 cm of Hg and a temperature of 270C has a mass of…

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Q: How many liters of hydrogen gas are needed to produce 110.0 grams of water at 25.0°C and 1.00 atm…

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Q: Which gas sample has the greatest volume at STP?a. 10.0 g Kr b. 10.0 g Xe c. 10.0 g He

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Q: 1.22 atm. What is the molar mass of the unknown compound?     38.0 g/mol     12.2 g/mol…

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Q: N2 O2 2.0 L 1.0 atm 25 °C 3.0 L 2.0 atm 25 °C Consider the apparatus shown in the drawing above.…

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Q: A gas occupies 45.0 L at 2.00 atm pressure and 27°C. Calculate its volume at STP.

A:

Q: Which of the following should be done to lower the pressure of 1.0 mole of an ideal gas in a 22.4 L…

A: Absolute zero pressure is the point where there exist minimum temperature i.e. zero  absolute zero…

Q: Oxygen gas is collected at a pressure of 800 mm Hg in a container which has a volume of 15.0 L.…

A: Given : P = 800mmHg = 1.0526atm   Volume = V = 15L   No. Of moles = n = 0.650 moles

Q: 1. The given volume of H2O2 was 5.00mL. The temperature is 21.4C. ther barometric pressure is…

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Q: Sodium metal reacts with water to produce hydrogen gas according to the following equation: 2Na(s) +…

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Q: A sample of an unknown compound is vaporized at 150*C. The gas produced has a volume of 1240mL at a…

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Q: In an experiment, 531.7 g of chlorine gas are held in a 3.5 L container at 39° C. How much pressure…

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Q: A mixture of nitrogen and neon gases, at a total pressure of 758 mm Hg, contains 6.08 grams of…

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Q: A sample of an unknown compound is vaporized at  100.°C . The gas produced has a volume of…

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Q: A gaseous mixture contains 12.4 g of N2 and 12.4 g of 02 that exerts a total pressure of 1.23 atm.…

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Q: Calculate the mass (g) of SO3 gas that has a pressure of 4.5 atm when placed in a 20300 mL container…

A: Determination of the mass of SO3 Given: Pressure = 4.5 atm Temperature = 428 K Volume = 20300 mL

Q: A gas cylinder contains the following mixture of gases: 16 g SO2, 16 g CH4 and 20 g Ar.  Which gas…

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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.