2 Answers

Carl H · Answer 1 · 2017-01-09T02:26:31+0000

Answer: The moles of oxygen produced will be 8.25 moles.

Step-by-step explanation:

We are given:

Moles of aluminium produced = 11.0 mol

The chemical equation for the decomposition of aluminium oxide follows:

$2Al_2O_3\rightarrow 4Al+3O_2$

By Stoichiometry of the reaction:

When 4 moles of aluminium is produced, 3 moles of oxygen gas is also produced.

So, when 11.0 moles of aluminium is produced,
(3)/(4)* 11.0=8.25mol of oxygen is also produced.

Hence, the moles of oxygen produced will be 8.25 moles.

X Pahadi · Answer 2 · 2017-01-12T02:50:48+0000

Answer : The number of moles of oxygen produced are, 8.25 mole

Explanation : Given,

Moles of Al = 11 mole

The balanced chemical reaction will be,

$2Al_2O_3\rightarrow 4Al+3O_2$

From the balanced chemical reaction we conclude that,

If 4 moles of Al are produced then 3 mole of oxygen are also produced

So, 11 moles of Al are produced then
(3)/(4)* 11=8.25mole of oxygen are also produced

Therefore, the number of moles of oxygen produced are, 8.25 mole

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