Sodium metal reacts with water to form hydrogen gas by the following unbalanced chemical equation: Na(s) + H2O(0) NaOH(aq) + H2(g) If 20 g of sodium are reacted with excess water at a temperature of 30°C and a pressure of 0.8 atm, what volume of H2 is produced? 21.6 L 13.5 L 26.7 L 1.34 L 27.01

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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.