Answer to Question #181498 in General Chemistry for ciara thompson

General Chemistry

Question #181498

How many moles of sodium azide must decompose to form 0.71 mol of nitrogen gas?

Expert's answer

Start with the balanced chemical equation for this decomposition reaction

2NaN₃→2Na + 3N₂

Mole ratio

2 moles of NaN3 = 3 moles of N₂

= 2×0.71/3

= 0.473 moles

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