Sodium azide, NaN3, decomposes according to the following equation and produces N2 gas that inflates the SRS airbag when a car is involved in a serious collision.                            2NaN3(s) ® 2Na(s) + 3N2(g) How many grams of sodium azide (molar mass=65.02 g/mol) is needed to inflate a 45.0-L airbag at 25°C and a pressure of 809 torr? (Assume that the decomposition produces 100% yield.)

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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.