The concentration of Ca²+ in a sample of sea water is determined using a Ca ion-selective electrode and a one-point standard addition. A 10.00-mL sample is transferred to a 100-mL volumetric flask and diluted to volume. A 50.00-mL aliquot of the sample is placed in a beaker with the Ca ISE and a reference electrode, and the potential is measured as -0.05290 V. After adding a 1.00-mL aliquot of a 5.00 × 10-2 M standard solution of Ca²+ the potential is -0.04417 V. What is the concentration of Ca²+ in the sample of sea water?

The concentration of Ca²+ in a sample of sea water is determined using a Ca ion-selective electrode and a one-point standard addition. A 10.00-mL sample is transferred to a 100-mL volumetric flask and diluted to volume. A 50.00-mL aliquot of the sample is placed in a beaker with the Ca ISE and a reference electrode, and the potential is measured as -0.05290 V. After adding a 1.00-mL aliquot of a 5.00 × 10-2 M standard solution of Ca²+ the potential is -0.04417 V. What is the concentration of Ca²+ in the sample of sea 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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