A chemistry student was asked to calculate the number of moles of iron required to react with 1.20 mol of oxygen to produce iron (iii) oxide. his calculation is shown below :
1.20 mol O2 x 1 mol fe / 1 mol O2 = 1.20 mol Fe
Is the student correct? Use evidence to support your answer.

Write and balance the equation

4Fe + 3O2 -> 2Fe2O3

0.32 mol Fe x 2 mol Fe2O3 / 4 mol Fe =

0.16 mol of Fe2O3

Explanation:

yes it is balanced

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

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