College Chemistry Lab

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For the following mixture, determine the initial concentration of Fe^3+.

0.00250M Fe^3+ --- 8.00mL
0.00250M SCN^- --- 7.50mL
0.10M HNO3 --- 4.50mL

• College Chemistry Lab -

Obviously the INITIAL concn of Fe^+3 is 0.00250 M because that's what it says. What I think you intended to ask is to calculate the concn of Fe^+3 in a solution of ....... BEFORE reaction takes place. That answer will be 0.00250 x [8 mL/(8.00 + 7.50 + 4.50)]

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