Chem

posted by .

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.

  • Chem -

    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?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    how would you prepare 1.00 L of 0.50 M solution of NiCl2 from the salt nicl2ยท6H2O?
  2. Chem Help URGENT

    Could someone help me with these molecular formulas, i don't know what im doing wrong. For this example, i did it like this and it says its incorrect. Could you solve the the equations below your way and i match it to mines?
  3. Chemistry

    How would you prepare 1.00 L of a 0.5 M solution of NiCl2 from the salt NiCl2 x 6H2O
  4. Chemistry

    Okay, so how would i work out: How would you prepare 1.00 L of a .5M Solution of NiCl2 from the salt NiCl2 x 6H2O, Because what im doing is not working. :/
  5. Chemistry

    Okay, so how would i work out: How would you prepare 1.00 L of a .5M Solution of NiCl2 from the salt NiCl2 x 6H2O, Because what im doing is not working. :/
  6. Chemistry help?

    The mass of a quantity of NiCl2 is 24.6 g. How many formula units are in the sample?
  7. Chemistry Hess's Law

    (1) 2 Ni(s) + O2 (g) --> 2NiO(s) delta H= -479.4 kJ (2) Ni(s) + Cl2(g) --> NiCl2(s) delta H= -305.3 kJ Using equations 1 and 2 and Hess's Law, determine the amount of moles Nickel (ii) Chloride that was combusted given the following: …
  8. Chemistry

    How much of each of the following substances would you add to water to prepare 1.90 L of a 0.15 M solution?
  9. Chemistry

    How many milliliters of 0.258 M NiCl2 solution are needed to react completely with 20.0 mL of 0.153 M Na2CO3 solution?
  10. Chemistry

    How many milliliters of .200 M NaOH solutions are needed to react with 40.0 mL of a 0.340 M NiCl2 solution?

More Similar Questions