posted by Jason .
I have done this so many way and can't seen to get the right answer please help!
I'm looking for the Concentration of NiCl2, M from the following
Volume of 0.390 M NiCl2, mL 4.0 3.0 2.0 1.0
Volume of water, mL, 0 1.0 2.0 3.0
Absorbance 0.858 0.644 0.429 0.215
I keep getting 3.432 for the first one and it's not right.
You need to clarify the post. If you have 4.0 mL of 0.390M NiCl2 and you add no H2O to it then (NiCl2) = 0.390M. What are you looking for and what does the absorbance have to do with it? And which are you calling the "first" one?