A sample of a gas in a cylindrical chamber with a movable piston occupied a volume of 11.60 liters when the pressure was 9.97 x 10* Pa and the temperature was 24.9°C. The volume of the system was readjusted to 8.50 liters by moving the piston. What was the pressure exerted on the surface of the piston by the gas if the temperature of the system remained constant? (A) 1.011 × 103 Pa (B) 1.36 x 105 Pa c) 7.31 x 104 Pa D 1.01 x 105 Pa (E) 9.83 x104 Pa

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Q: What is the equivalent of 6.2 x 104 ppm in %w/v ?

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Q: #10: 10.0 L of a gas is found to exert 97.0 kPa at 25.0 °C. What would be the required temperature…

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Q: What is the density of N2O5 under standard temperature and pressure conditions, in g/L?

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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.