How many moles of Carbon dioxide are produced when 4.5 mol of Boron carbonate decomposes completely?

n CO2 = 13.5 mol

Explanation:

balanced reaction:

B2 (CO3) 3 → B2O3 + 3CO2

∴ n B2 (CO3) 3 = 4.5 mol

⇒ n CO2 = (4.5 mol B2 (CO3) 3) * (3 mol CO2 / mol B2 (CO3) 3)

⇒ n CO2 = 13.5 mol