The reaction is
And ,the molar masses(g/mol) for the substances are:
Gas constant is
Now we're ready to use the ideal gas law:
The volume of gas is
The mass of
There are no "incorrect" values unless you require a "balanced" outcome, which rarely happens in practice.
The "filling in the blanks" can be done with the given data and the balanced chemical equation.
Converting the mass to moles for iron and the volume to moles for the
The balanced reaction dictates that the
This should be the same for a balanced reaction as
The moles of
V = nRT/P ;
You can "mix and match" the other values to decide which ones are "incorrect" OR if you just need to fill the blank with a different number.