College Chemistry Lab

posted by .

For the following mixture, determine the initial concentration of Fe^3+.

0.00250M Fe^3+ --- 8.00mL
0.00250M SCN^- --- 7.50mL
0.10M HNO3 --- 4.50mL

  • College Chemistry Lab -

    Obviously the INITIAL concn of Fe^+3 is 0.00250 M because that's what it says. What I think you intended to ask is to calculate the concn of Fe^+3 in a solution of ....... BEFORE reaction takes place. That answer will be 0.00250 x [8 mL/(8.00 + 7.50 + 4.50)]

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. science

    college chemistry-absorbance of an equilibrium mixture Problem: A student mixed 4.00mL of 1.02x10^(-1) M Fe(NO3)3 with 100.00mL of 1.98*10^(-4) M KSCN, using 5.0*10^(-1) M HNO3 as the solvent for both solutions, and found the absorbance …
  2. College Chemistry Lab

    Determine the molarity of FD&C Yellow #5 in the following solution that's prepared by mixing the dye solution with water and alcohol. None of the solutes react with one another. 6.35x10^-5M FD&C Yellow #5 = 6.50mL deionized water = …
  3. chemistry

    1gm of AgNO3 is dissolved in 50ml of h2o. it is titrated with 50ml od sol. agi is precipitated is filtered of.the exces of ki is then titrated with 1/10M KIO3 in the presence of acidic medium until all I->>ICl. it reqires 50ml …
  4. Chemistry

    This is for a lab about determining the equilibrium constant. Given: 5.00mL of .203M Fe(NO3)3 mixed with 100mL of .00205M KSCN in a .5M HNO3 solvent for both solutions. Resulting absorbance for solution is .315. How can i find the …
  5. Chemistry

    The following volumes of 0.000300 M SCN are diluted to 15.00mL determine the concentration of SCN in each sample after dilution. Sample 0.000300 M SCN(ml) SCN (M) 1 1.50 2 3.50 Can someone please explain how to do this?
  6. Chemistry

    (2.50mL)(0.10M) / 75.00mL = 0.003333 Im not sure how many sig figs to use. Would it 3.33e-3?
  7. College Chemistry

    calculate the initial concentration of SCN- ions and Fe3+ ions when a solution was prepared by mixing 3.00mL of 0.00280M KSCN, 6.00 mL of 0.250M Fe(NO3)3 and 16ml of 0.050M HNO3.
  8. Chemistry

    Consider the titration of 50mL of 2.0M HNO3 with 1.0M KOH. At eah step, add the following: 0ml, 25ml, 50ml. a) Write a reaction to show the initial reaction b)ICE table c) determine the spectators present after d)Calculate the pH
  9. Organic Chemistry

    What volumes of 0.00250M salicylic acid solution and 0.1M ferric chloride solution would you need to make 50mL of a 0.00350M solution?
  10. Chemistry (molarity) *emergency*

    Hi there, maybe dumb question but how would I find the initial concentration of Fe^3+?

More Similar Questions