A large evacuated flask initially has a mass of 134.567 g. When the flask is filled with a gas of unknown molar mass to apressure of 735 torr at 31 °C, its mass is 137.456 g. When the flask is evacuated again and then filled with water at 31 °C, itsmass is 1067.9 g. (The density of water at this temperature is 0.997 g/mL.) Assuming the ideal-gas equation applies, calculatethe molar mass of the gas.

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Q: 5. A student conducts a laboratory investigation of anaerobic respiration. The student places 10.0 g…

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Q: pressure

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Q: 1) Calculate the volume of 1.62g of Helium gas at 25.670C and 872 mmHg.  (R = 0.0821 atm.L/mol.K)

A: As per our guidelines, we are supposed to answer?️ only one question. Kindly repost other questions…

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.