The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of sodium azide, which produces large volumes of nitrogen gas. 1. Write a balanced chemical equation, including physical state symbols, for the decomposition of solid sodium azide (NaN,) into solid sodium and gaseous dinitrogen. Ix10 2. Suppose 46.0 L of dinitrogen gas are produced by this reaction, at a temperature of 19.0 °C and pressure of exactly 1 atm. Calculate the mass of sodium azide that must have reacted. Be sure your answer has the correct number of significant digits. g

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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.