[NewtoAtoms]

Q:  in an experiment done carefully so there is a 100% yield.  0.05 g of iron reacted with hydrochloric acid to give 0.145 g of a chloride FeCln.  there are two chlorides of iron, ferrous chloride, FeCl2, adn ferric chloride, FeCl3. Which one was obtained?

I am lost because I am only given 0.05 g of iron and no amount of grams of HCl.

a.  I switched the 0.05 g to moles.

0.05 g / x moles = 55.8 g/ 1 mol = 0.000896 moles

b.  I know the following equations

2HCl + Fe -----> FeCl2 + H2
6 HCl + 2 Fe -----> 2FeCl3 + 3 H2

I am stuck... Because in equation 1 0.000896 moles Fe react to give 0.000896 moles FeCl2, because it's a 1:1 ratio.
But also from equation 2, 2 moles of Fe react to give the same 0.000896 moles of FeCl2 because its a 2:2 ration or 1:1 ratio too.

Please any help would be great.

[Borek]

Calculate mass of chloride produced in each case.

[josh.more]

Hey,

Do you happen to have your CHEM205 labs?
I am having a very hard time finding any help.

Thanks a lot,
Josh

[Borek]

Do you happen to have your CHEM205 labs?

Are you aware of the fact our users come from all parts of the world, and there are many different CHEM205 courses?