The calcium content of a natural water sample was analyzed by flame atomic absorption spectrometry. A 5-mL sample of natural water was added to a 50-mL volumetric flask and diluted to mark with distilled water. The solution gave an absorbance of 0.457. Another 5-mL portion of the water sample was placed in a 50-mL volumetric flask and treated with 1.00 mL of a standard solution containing 0.10 mg mL-1 and diluted to mark. The mixture gave an absorbance of 0.542. Calculate the concentration (in mg mL-1) of calcium in the natural water. 0.136 O 0.194 0.108 0.142

The calcium content of a natural water sample was analyzed by flame atomic absorption spectrometry. A 5-mL sample of natural water was added to a 50-mL volumetric flask and diluted to mark with distilled water. The solution gave an absorbance of 0.457. Another 5-mL portion of the water sample was placed in a 50-mL volumetric flask and treated with 1.00 mL of a standard solution containing 0.10 mg mL-1 and diluted to mark. The mixture gave an absorbance of 0.542. Calculate the concentration (in mg mL-1) of calcium in the natural water. 0.136 O 0.194 0.108 0.142

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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