You breathe in 12.0 L of pure oxygen at 298 K and 1000 kPa to fill your lungs. How many moles of oxygen did you take in? A. 1 mole B. 2 moles C. 5 moles D 0.05 moles

Q: 44. What volume of HCl gas reacts completely with excess zinc metal to produce 2.46 L of H₂ gas at…

A: The ideal gas equation shows the relation between pressure, volume, no of moles and temperature.

Q: 3. An experiment was made of the effect of temperature on the volume of 1.00 g of Hydrogen (H2) gas,…

A: For a definite amount of gas, at constant pressure, the volume of the gas increases with an increase…

Q: . One container with a volume of 1.00L contains argon at a pressure of 1.77 atm, and a second…

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Q: You are holding four identical balloons each containing 10.0 g of a different gas. The balloon…

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Q: 4. Two tanks are connected by a closed valve. Each TANK A tank is filled with gas as shown in the…

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Q: The mass of pure methane (CH4) gas has to be mixed with 70 g of pure CO so that the partial pressure…

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Q: A sample of CO2 was confined to a container at a constant temperature. When the pressure applied to…

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Q: 20.00 moles of helium are mixed with 5.00 mole of oxygen gas in a 15.00 L container at 22 0C.   a.…

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Q: A 4.00 g sample of a mixture of BaO and CaO is placed in a 1.00 L vessel containing CO2 at a…

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Q: At high pressures, real gases do not behave ideally. Calculate the pressure exerted by 13.5 g H2 at…

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Q: A gas storage cylinder in an ordinary chemical laboratory measures 7.0cm wide and 28.cm high. This…

A: Answer -

Q: 4. Dilute hydrochloric acid is added to a 0.500 g sample of an alloy containing zinc and copper. The…

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Q: 20. Which of the following postulates of the Kinetic Molecular Theory for gases can explain why…

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Q: 6. What happens to the density of a gas as its V decreases at constant P and T? C. stays the same D.…

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Q: A gas storage cylinder in an ordinary chemical laboratory measures 7.3 cm wide and 29. cm high. This…

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Q: Multiple-Choice Questions 1. Determine the density of NO gas at 101 kPa and 35 °C in g dm. A 0.012…

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Q: . A basketball is inflated to 9.0 psi (pounds per square inch) above atmospheric pressure of 14.7…

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Q: A gas storage cylinder in an ordinary chemical laboratory measures 6.1 cm wide and 24. cm high. This…

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Q: Write your answer in liters.

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Q: Part 5. Dalton's Law of Partial Pressures A sample of Argon gas is placed in a 5.0L container at…

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Q: 5.0L air 2.0L air The volume of a sample of air in a cylinder with a movable piston is 2.0 L at a…

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Q: 13. A mixture of gas has a total pressure of 3,039,750 Pa and is approximately 47.28% nitrogen,…

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Q: any moles of helium have been lost?

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Q: A gas storage cylinder in an ordinary chemical laboratory measures  5.7cm  wide and  23.cm  high.…

A: Given: A gas storage cylinder in an ordinary chemical laboratory measures 5.7 cm wide and 23 cm…

Q: A sealed container contains 8.0 g of CH4 and 21.0 g of N₂ gas at a pressure of 150 kPa. What is the…

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Q: A gas storage cylinder in an ordinary chemical laboratory measures 7.1 cm wide and 28. cm high. This…

A: Given:A gas storage cylinder in an ordinary chemical laboratory measures 7.1 cm wide and 28 cm…

Q: A mixture of 1.01 g H2 (Molar mass: 2.016 g/mol) and 17.73 g Cl2 (Molar mass: 71 g/mol) in a…

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Q: 7. Two tanks are connected by a closed valve. Each tank is filled with gas, and both tanks are held…

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Q: 2.00 L container at 22.00C contains a mixture of 1.00 g H2 (g) and 1.00 g H2(g) and 1.00 g He(g). a.…

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Q: 6. Consider that the average lung can hold about 6 liters of air and the composition of air is 78%…

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Q: 8. How do gas particles respond to an increase in pressure? A There is an increase in kinetic energy…

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Q: Ideal gas equation in terms of KE per unit volume, E, is

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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.