Question

How many grams of sodium are produced when 2.5 grams of sodium azide decomposes

Drive - Google... P Praxis Holdings LLC... Question 5 1 pts 2 NaN3(s) ------> 2 Na(s) + 3 N2(8) How many grams of sodium are produced when 2.5 grams of sodium azide decomposes? 0.88 g 1.6 g 0.038 g 1 nts

Answer 1

Q5. Correct answer is : 0.88 g

Explanation

Given : mass NaN₃ = 2.5 g

moles NaN₃ = (mass NaN₃) / (molar mass NaN₃)

moles NaN₃ = (2.5 g) / (65.0 g/mol)

moles NaN₃ = 0.038455 mol

moles Na produced = moles NaN₃ consumed

moles Na produced = 0.038455 mol

mass Na produced = (moles Na produced) * (molar mass Na)

mass Na produced = (0.038455 mol) * (23 g/mol)

mass Na produced = 0.88 g