- #1

w3390

- 346

- 0

## Homework Statement

a. the initial Fe3+ concentration of all of the solutions?

b. the initial SCN1- concentrations of Solutions #1A thru #5A?

c. the final concentration of FeSCN2+ in Solution #1A?

## Homework Equations

The first column is the solution number, the second column is the volume of .100M Fe^3+, the third column is the volume of 5.00e-4M SCN^1-, the fourth column is the volume of water, and the fifth column is the total volume.

**All volumes are in units of mL.**

1A 1.00 1.00 4.00 6.00

2A 1.00 1.50 3.50 6.00

3A 1.00 2.00 3.00 6.00

4A 1.00 2.50 2.50 6.00

5A 1.00 3.00 2.00 6.00

## The Attempt at a Solution

For part a., I tried multiplying the given .100M by .001L to get .000100M. This, however, is incorrect according to my online assignment.

For part b., I did the same thing but with the SCN^1-. I multiplied the 5.00e-4M by the volume in mL. So for solution #1A, I did (5.00e-4M)*(.001L) and got .000000500M. This too is incorrect on both in both respects.

Part c is the same deal.

If anyone could help me with part a and maybe one from part b, I could do the rest. Any help is much appreciated.