Chemistry

A reaction mixture of 4.0 mL of 0.002 M SCN- and 5.0 mL of 0.002 M Fe3+ is diluted to 10.0 mL with 0.1 M HNO3 to form the blood-red FeNCS2+ complex. The equilibrium molar concentration of the FeNCS2+ determined from a standardization curve is 1.5x10^-4 mol/L. Calculate, in sequence, each of the following quantities in the aqueous solution to determine the equilibrium constant for the reaction:
Fe3+(aq) + SCN-(aq) <--> FeNCS2+(aq)

A) moles of FeNCS2+ that form in reaching equilibrium

B) moles of Fe3+ that react to form the FeNCS2+ at equilibrium

C) moles of SCN- that react to form the FeNCS2+ at equilibrium

D) moles of Fe3+ initially placed in the reaction system

e) moles of SCN- initially placed un the reaction system

f) moles of FE3+ (unreacted) at equilibrium

G) moles of SCN- (unreacted) at equilibrium

h) molar concentration of Fe3+ (unreacted) at equilibrium

i) molar concentration of SCN- (unreacted) at equilibrium

j) molar concentration of FeNCS2+ at equilibrium

k) Kc = [FeNCS2+]/([Fe3+][SCN-])

  1. 👍 0
  2. 👎 0
  3. 👁 587
  1. Just want to know

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    How many milliliters of 5M H2SO4 are required to make a 1500ml of a .002M H2SO4 solution. I used the formula M*L=M * L so mL *5 = 1500 * .002 I got .6mL is this right?

  2. math

    Cardboard costs $0.002 per square centimeter. How much will Alan spend to build the following figure out of cardboard? Round your answer to the nearest cent.

  3. Chemistry-Dr.Bob

    A solution is prepared by mixing 50.0mL of 0.001 M HCl and 10.0 mL of 0.200 M NaCl. What is the molarity of chloride ions in this solution? My work: (0.001 mol/L)((0.05 L)= 0.005 mol HCl (0.200 mol/L)(0.01 L)= 0.002 mol NaCl

  4. rounding decimals

    Round to the nearest tenth. Would 0.002 be rounded up to 0.010?

  1. Are these correct?

    A) How do you make 200 mL of a 0.1 M solution of a substance that has a molecular weight of 121.1 g/mol? Answer I got: 200mL = 1/0.1M x 1/(121.1g/mol) x mass of the substance. mass of the substance = 0.2L x 0.1M x 121.1g/mol=2.42g

  2. Math

    What is the decimal equivalent to 2/100? A 2.0 B 0.20 C 0.02 D. 0.002

  3. science-CHEM

    Fe+3 + SCN- ==Fe(SCN)+2 if adding NaOH will form precipitates, but what is the precipitates' formula? And after this reaction, if we add HCl to the reaction, will the precipitates dessolve? What does the HCl affect the reaction?

  4. statistics

    Chapter 06, Problem 8 A tire manufacturer has been concerned about the number of defective tires found recently. In order to evaluate the true magnitude of the problem, a production manager selected ten random samples of twenty

  1. math-statistics

    An appliance manufacturer stockplies washers and dryers in a large warehouse for shipment to retail stores. Sometimes in handling then the appliances get damaged. Even though the damage may be minor, the company must sell those

  2. Pre-AP Chemistry

    Volume (cm3 Area(cm2) Thickness (cm) .20 cm3 100 cm2 0.002 cm .28 cm3 122 cm2 0.002 cm .24 cm3 144 cm2 0.017 cm .41 cm3 225 cm2 0.0018cm If you had used a very crude balance that allowed only one significant figure, how would this

  3. Chemistry

    A student mixes 5.0 mL of 0.00200 M Fe(NO3)3 with 5.0 mL 0.00200 KSCN. She finds that the concentration of FeSCN2+ in the equilibrium mixture is 0.000125 M. Follow these steps to determine the corresponding experimental value of

  4. Chemistry

    What are the (a) [H+], (b) [OH-], (c) pH, and (d) pOH of a 0.002 M solution of HNO3?

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