Question

How many moles of O2 are required
if 12 moles of CuFeS are consumed?

Answer 1

The number of moles of O₂ required for the reaction, given that 12 moles of CuFeS are consumed is 24 moles

How to calculate the number of mole of O₂ required?

First, we shall write the balanced equation for the the reaction involving O₂ and CuFeS. This is shown below:

`2CuFeS\ +\ 4O_2\ \rightarrow\ Cu_2S\ + 3SO_2\ +\ 2FeO`

From the above equation,

2 moles of CuFeS required 4 moles of O₂

Finally, we shall calculate the number of moles of O₂ required for the reaction, given that 12 moles of CuFeS are consumed. Details below:

From the above equation,

2 moles of CuFeS required 4 moles of O₂

Therefore,

12 moles of CuFeS will require =
`(12\ *\ 4)/(2)` = 24 moles of O₂

Thus, we can conclude that the number of moles of O₂ requaired for the reaction is 24 moles

Complete question:

A chemist carried out a reaction between CuFeS and O2. How many moles of O2 are required if 12 moles of CuFeS are consumed?

Answer 2

24 moles of oxygen are required.

Step-by-step explanation:

Given data:

Number of moles of CuFeS = 12 mol

Number of moles of O₂ react = ?

Solution:

Chemical equation:

2CuFeS + 4O₂ → Cu₂S + 3SO₂ + 2FeO

now we will compare the moles of O₂ and CuFeS.

CuFeS : O₂

2 : 4

12 : 4/2×12 = 24 mol