A gas sample has an initial volume of 55.2 mL, an initialtemperature of 35.0 °C, and an initial pressure of 735 mmHg. The volume is decreased to 48.8 mL and the temperature is increased to 72.5 °C. What is the final pressure?(a) 933 mm Hg (b) 186 mm Hg(c) 1.72 × 103mm Hg (d) 401 mm Hg

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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.