2. When an F ion-selective electrode was immersed in unfluorinated ground water, the potential was 40.0 mV more positive than the potential of tap water that maintains its fluorinated water at the recommended level of 1.00 mg F/L. What is the concentration of F mg/L in the ground water?

2. When an F ion-selective electrode was immersed in unfluorinated ground water, the potential was 40.0 mV more positive than the potential of tap water that maintains its fluorinated water at the recommended level of 1.00 mg F/L. What is the concentration of F mg/L in the ground water?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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6. Suppose you wish to separate Cd²+ from Zn²+ by electrodeposition of metallic cadmium onto an inert cathode from an aqueous solution containing 0.015 M Cd(NH3)4²+, 0.010 M Zn(NH3)4²+, and 1.00 M uncomplexed NH3. You want to deposit 99.99% of the Cd while not depositing any Zn. What is the allowable range of potentials that you can use? Cd(NH3)4²+ + 2e = Cd(s) + 4 NH3 Zn(NH3)4²+ + 2e → Zn(s) + 4 NH3 E = -0.61 V vs. SHE E° -1.04 V vs. SHE
Calculate the potential of a zinc electrode in a 0.0500 M solution of Zn (NO3) 2 ?