In need of help with titration problem?

Posted on 2015-09-25 06:47:00 in Chemistry by KELLY

I've been working on this problem for a while, and my answers keep coming out wrong, can anyone explain how to solve this?
A 0.5279 g solid sample containing a mixture of LaCl3 (molar mass = 245.26 g/mol) and Ce(NO3)3 (molar mass = 326.13 g/mol) was dissolved in water. The solution was titrated with KIO3, producing the precipitates La(IO3)3(s) and Ce(IO3)3(s). For the complete titration of both La3 and Ce3 , 43.96 mL of 0.1254 M KIO3 was required. Calculate the mass fraction of La and Ce in the sample.
g La/g Sample:_____ g Ce/g Sample:_____

---

Answer Comment

No Answers Posted Yet.