The questions asks us to: Determine the molar concentration of I- in a reaction mixture. The reaction was as follows (data):(adsbygoogle = window.adsbygoogle || []).push({});

20 mL of .1 M KI

0 mL of .1 M KCl

10 mL of .003 M Thiosulfate

20 mL of .10 M Persulfate

I did the following:

20 ml I- x (1 L / 1000 mL) = .02 L I-

.02 L I- x (.1 mol / 1 L) = .002 mol I-

.002 mol / .05 L solution (20 mL + 0 mL + 10 mL + 20 mL) = .04 M I-

Little rusty, wanted to make sure I did this right.

Any help will be greatly appreciated!

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Determing Molarity. Did I do it right?

**Physics Forums | Science Articles, Homework Help, Discussion**