Chemistry

I'm trying to do a lab, and I need to find the concentration of FeSCN+2 in five solutions based the calibration curve and the absorption. I have a calibration curve, the number of mLs and initial moles of Fe+3 and SCN-, the transmittances, the absorbencies, and the equation. I've tried my textbook, but it doesn't have the topic.

  1. 👍
  2. 👎
  3. 👁
  1. If you have the calibration curve, I assume it is A vs concentration. Choose your A values for the unknown, read the concn from the graph. I don't know how your graph is calibrated; therefore, I don't know the concn units, but you will need to convert that concn you find to the initial values of the unknowns. You know the dilutions you made.I'm sorry to be so vague but you don't have any numbers for me to be more helpful.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Ap Biology

    We performed a lab that studied osmosis in potato cells. We put cylinders of potato into varying molar Sucrose solutions and after recording different types of data were able to find the osmotic and water potential of the sucrose

  2. Chemistry Titration Lab HELP!

    Hi everyone! I just got a new lab that I MUST complete today, and it's about titration- I have absolutely no clue how to do it, it just doesn't make sense to me! I hope that someone can help explain to me how to do it so I can

  3. chemistry 12 lab

    We did a lab on equilibrium and this is one of the following questions: When Ag ions are added to FeSCN ions (which are red in colour), the colour disappears, and a white precipitate of AgSCN forms. The question is.. Explain why

  4. 11th grade CHEMISTRY TITRATION LAB!

    i have a tritation lab due tomorrow and i am stumped on a couple things. its a titration lab using sodium hydroxide (NaOH)- 250 mL 0.300 M concentration, 10 mL of an unknown substance of vinegar, the avg. of titrated NaOH in the

  1. Chemistry

    I have 3 Questions: We actually did the lab experiment for this, but I have no idea whether my reasons are correct. 1) For the equilibrium system Fe+3 + SCN- FeSCN+2, what would happen if you add 2 drops of Fe No3?. Which way will

  2. Chem

    You made 100.0 mL of a lead(II) nitrate solution for lab but forgot to cap it. The next lab session you noticed that there was only 80.7 mL left (the rest had evaporated). In addition, you forgot the initial concentration of the

  3. Chemistry

    Your lab partner tells you that he has prepared a solution that contains 1.5 moles of NaOH in 1.5 L of aqueous solution, and therefore that the concentration of NaOH is 1.5 M. (a) Is he correct (b) If not what is the correct

  4. Chemistry

    We had a lab where the standard solution was potassium hdrogenphthalate. In this we added 3 drops of phenolphtalein indicator and then we ran sodium hydroxide into the solution. We did four different flasks and the final readings

  1. Chemistry(Please check)

    I completed a lab to find the determination of Kc. I have to find the concentrations of reactants at equilibrium using an ICE table. The equation that were are using is Fe^3+(aq) + SCN^-(aq) -> Fe(SCN)^2+(aq) I have to create 5

  2. chemistry

    I did a lab using an electrochemical cell to establish a relationship between cell potential and concentration. I derived two equations from lines of best fit. One is Cell potential of Ag vs. Cu Concentration: y =

  3. Chemistry

    Quick question, since FePO4 is insoluble, will that mean a precipitate will form? During the experiment I don't remember seeing a precipitate. Is that my error, or is the precipitate hard to see? Sure. Adding Na3PO4 will make a

  4. chem

    A student mixes 5 mL of 2.00 x 10^-3 M Fe(NO3)3 with 5 mL 2.00 x 10 ^-3 M KSCN. They find that in the equilibrium mixture concentration of FeSCN^2+ is 1.40 x 10^-4 M. Find each of the following: the initial concentration in

You can view more similar questions or ask a new question.