In the redox titration of Fe^2+ with Ce^4+ to form Fe^3+ and Ce^3+, what is the predominant form of cerium after 120 mL of Ce^4+ has been added to the Fe^2+ solution?http://media.apexlearning.com/Images/201306/25/52f909c0-289d-47e5-aa8c-058dccc2049e.jpg

Question

vera_ewing · Answer

@diamondboy

vera_ewing · Answer

Is Ce^3+ the answer @diamondboy

vera_ewing · Answer

@JFraser

vera_ewing · Answer

@Australopithecus help!

diamondboy · Answer

First of all I cant access d link

vera_ewing · Answer

Do you need it? It's just a graph...

diamondboy · Answer

ok

diamondboy · Answer

I am not absolutely sure of ur answer but let me do a quick look up :)

vera_ewing · Answer

ok

australopithecus · Answer

what is it a graph of

australopithecus · Answer

I cant access it either draw it or screen cap and post to imgur

australopithecus · Answer

It has been awhile since I have done this type of experiment

vera_ewing · Answer

Can you do it without the graph?

vera_ewing · Answer

A.	Ce^1+
 		B.	Ce^3+
 		C.	Ce^4+
 		D.	Ce^2+

vera_ewing · Answer

@JFraser Please help me

australopithecus · Answer

Just look at electron potentials for reduction of those ions

jfraser · Answer

this is a limiting reactant problem, I think. What's the balanced reaction?

vera_ewing · Answer

I'm pretty sure the answer is A...

jfraser · Answer

what are the concentrations of the $Fe^{+2}$ and $Ce^{+4}$?

vera_ewing · Answer

I don't know....

jfraser · Answer

I don't think there's a way to do this without knowing the concentrations of ions at the start, then it becomes a simple limiting reactant problem

vera_ewing · Answer

ok...that's fine, thanks anyway

australopithecus · Answer

Any way you could sketch the graph?

vera_ewing · Answer

It's ok I got it right :)

diamondboy · Answer

so it was a?

australopithecus · Answer

what was your reasoning was it just a guess?