Question

Aluminum carbonate decomposes into aluminum oxide and carbon dioxide. How many moles of CO2 are produced when 5.0 moles of aluminum carbonate decomposes completely?
see picture attached

Answer 1

Given:

Aluminum carbonate decomposes into aluminum oxide and carbon dioxide.

To find:

Mole of carbon dioxide when 5 moles of aluminium carbonate decomposes?

Calculation:

$\boxed{\rm Al_{2}(CO_{3})_{3}\rightarrow Al_{2}O_{3}+3CO_{2}}$

Now, as per the balanced reaction:

1 mole $Al_{2}CO_{3}$ produces 3 moles $CO_{2}$

=> 5 moles $Al_{2}CO_{3}$ will produce (3 × 5) = 15 moles of $CO_{2}$

So, moles of carbon dioxide produced is 15 moles.