Simple solutions question (dilution)

[Rujano]

Homework Statement

Hi. If I have 3 mL of a Fe3+ solution (0.0007 mol/L) and that is treated with SCN- to form a complex and then is diluted until I have 100 mL of a solution.

What would be the final concentraton of that solution?

Homework Equations

C1*M1= C2*M2

The Attempt at a Solution

I Thought of the equation above, but I know that the formation of that comple must change something!

 

[Borek]

What would be the final concentraton of that solution?

Concentration of what? You have several ions present (I can list about a dozen, but you don't have to know about most of them).

 

[symbolipoint]

How many moles of your target compound or ion? What final volume is the solution? Molarity is moles per Liter. Is thiocyanate ion added in excess of the ferric ion?