REDOX TITRATION, determining RMM of iron salt?Watch
Ive determined the mass of iron in the salt itself via titration, and ive calculated the percentage of fe2+ in the iron salt.
I know the moles of fe2+ in the iron salt but how do I calculate the RMM of the iron salt?
thanks in advance
I got 1.83g/2.76g x 100% - 66.3% of fe2+.....
It also means that 66.3% of the Mr must be due to Fe.
i.e. 66.3% of the Mr must be 55.8.
1/0.663 x 55.8 = your answer.
Subtract off the Ar of Fe, which gives you the Mr of the rest.
Do you have an idea of what the rest is - knowing the Fe is 2+ should help you, i.e. if the rest had a mass of 71, it's likely to be Cl as there needs to be 2x.
BUT, it'll just be an educated hunch, unless you have more information.