I have not, without certainty, been able to figure out the following question:
Why must the precipitate in a solution be allowed to settle before collecting the supernatant to determine the limiting reactant in the original salt mixture?
My "answer": Because the reaction might not have fully completed, and when the supernatant is tested to determine the limiting reactant by adding drops of test reagents, both test reagents will form a precipitate.
Is that correct? I've done a lot of research online, and the only thing I am finding is that the precipitate must be allowed to settle - without given an explanation of why.
I didn't find the right solution from the Internet.