Question

How many moles of o2 are produced when 0.325 mol of ko2 reacts in this fashion?

Answer 1

Answer : The number of moles of
`O_2` produced are 0.244 moles.

Explanation : Given,

Moles of
`KO_2` = 0.325 moles

The balanced chemical equation follows:

`4KO_2+2CO_2\rightarrow 2K_2CO_3+3O_2`

By Stoichiometry of the reaction:

As, 4 moles of
`KO_2` react to give 3 moles of
`O_2`

So, 0.325 moles of
`KO_2` react to give
`(3)/(4)* 0.325=0.244` moles of
`O_2`

Therefore, the number of moles of
`O_2` produced are 0.244 moles.

Answer 2

Answer is: 0.244 moles of oxygen are produced.

Balanced chemical reaction: 4KO₂ + 2CO₂ → 2K₂CO₃ + 3O₂.
n(KO₂) = 0.325 mol.
From chemical reaction: n(KO₂) : n(O₂) = 4 : 3.
n(O₂) = 3 · 0.325 mol ÷ 4.
n(O₂) = 0.244 mol; amount of substance.
KO₂ is potassium superoxide, inorganic compound and it is used as oxygen generator in rebreathers, spacecraft andsubmarines.