Question

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How many moles of Fe2O3 can be made from 50 moles of Fe?

Answer 1

Answer: Synthesis

0.84 moles of oxygen

25 moles of
`Fe_2O_3`

Step-by-step explanation:

The balanced chemical equation is:

`4Fe+3O_2\rightarrow 2Fe_2O_3`

This is a synthesis reaction as one product is formed by combination of two reactants.

According to stoichiometry :

a. 2 moles of
`Fe_2O_3` require = 3 moles of
`O_2`

Thus 0.56 moles of
`Fe_2O_3` require=
`(3)/(2)* 0.56=0.84moles` of
`O_2`

b. 4 moles of
`Fe` give = 2 moles of
`Fe_2O_3`

Thus 50 moles of
`Fe` give =
`(2)/(4)* 50=25moles` of
`Fe_2O_3`