I need help answering part C, for question 2; I don’t know how NaCl affects any

Question

I need help answering part C, for question 2; I don’t know how NaCl affects any of the electrolytic cells Complete this pre-lab assignment before your lab session and present your your TA as you enter the laboratory onswers to constant using a 1. Look-up the literature values for the equilibrium constant for the dissolution of silver chlorde, bromide and silver iodide (K, values are values in Table I of your worksheets reported Appendix C of your textbook). Record these ode solution (100 ml 2. Lead chloride (PbCl,) is sparingly soluble in water PeCla))2r( What is the general expression for the oquilibyrium constant(K) for the above a. Ph ions b. In order to determine experimentally the K, value for PbCla a student builds a concentration cel as shown below (using 100 mL of solution in each compartment) iBased on this experimental set up, determine the reaction taking place in each compartment ? Determine which compartment is acting as the cathode and which one is the anode. ili. Determine the direction of electron flow in the external circuit iv. Determine the direction of ion flow in the salt bridge e fiou e that the ve pb (s) Pb (s) 20 x 10 MPb V 100 mL V 100 mL Cathode Anode Determine the cell potential for the above concentration cell. (the standard reduction potential (Emd) of Pb2 is-0.13 V) mt1osli.oio v. -0.0s3 Hint:make sure that you include the proper number of moles of electrons chemica) steces 64 Chemistry 213-Winter 2018

Explanation / Answer

2.c) i) Cell potential increases due to the more conductivity of sodium ion. When NaCl is dissolved in Pb2+ ion solution then it formed lead chloride and the sodium ion concentration increases.

Ksp is 1.7*10-5

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