10. Sodium azide decomposes rapidly to produce nitrogen gas. 2 NaN (s) 2 Na(s) + 3 N (g) How many gram of sodium az...

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10. Sodium azide decomposes rapidly to produce nitrogen gas. 2 NaN (s) 2 Na(s) + 3 N (g) How many gram of sodium azide is req

Answer 1

Answer #1

From ideal gas equation, PV = nRT

Number moles of N2(g), n= PV/RT = 1.50*60/(0.08206*305) = 3.60 moles

From the given balanced equation,

3 moles of N2 gas obtained by 2 moles of solid NaN3

3.60 moles of N2 gas obtained by 2*3.60/3 = 2.4 moles of solid NaN3

Mass of sodium azide required = 2.4*65 = 156 grams

Ans: c

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Answer 2

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