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2.a) Calculate the actual Concentration of Stock Solution (1) in ppm Na+. b) Calculate the Volume of Stock Solution (1) needed to prepare 100 mL of stock solution (2). c) Calculate the actual Concentration of Stock Solution (2) in ppm Na+.

2.a) Calculate the actual Concentration of Stock Solution (1) in ppm Na+. b) Calculate the Volume of Stock Solution (1) needed to prepare 100 mL of stock solution (2). c) Calculate the actual Concentration of Stock Solution (2) in ppm Na+.

Chemistry
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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Procedure: (1) Preparation of NaCl Stock Solution a. Prepare stock solution (1) by weighing the suitable amount of NaCl salt needed to prepare 100 mL of 1000 ppm Na+. Use unit cancellation method in calculating the required mass of NaCl. b. Calculate and pipette out an appropriate volume from a stock solution (1) and dilute to prepare 100 mL of 100ppm Na+ (stock solution 2). c. Preparation of Calibration standards Calibration standards are made by carrying out appropriate dilutions of the stock solution. Concentrations of the calibration standards are selected based on the limit of detection of the instrument in use. However, they are often in the range of 0.5, 1, 3, 5, 10, and 20 ppm for Na.
Transcribed Image Text:Procedure: (1) Preparation of NaCl Stock Solution a. Prepare stock solution (1) by weighing the suitable amount of NaCl salt needed to prepare 100 mL of 1000 ppm Na+. Use unit cancellation method in calculating the required mass of NaCl. b. Calculate and pipette out an appropriate volume from a stock solution (1) and dilute to prepare 100 mL of 100ppm Na+ (stock solution 2). c. Preparation of Calibration standards Calibration standards are made by carrying out appropriate dilutions of the stock solution. Concentrations of the calibration standards are selected based on the limit of detection of the instrument in use. However, they are often in the range of 0.5, 1, 3, 5, 10, and 20 ppm for Na.
2.a) Calculate the actual Concentration of Stock Solution (1) in ppm Na+. b) Calculate the Volume of Stock Solution (1) needed to prepare 100 mL of stock solution (2). c) Calculate the actual Concentration Stock Solution (2) in ppm Na+. 3. Calculate the Volume of Stock Solution (2) needed to prepare one of the Standard Solutions.
Transcribed Image Text:2.a) Calculate the actual Concentration of Stock Solution (1) in ppm Na+. b) Calculate the Volume of Stock Solution (1) needed to prepare 100 mL of stock solution (2). c) Calculate the actual Concentration Stock Solution (2) in ppm Na+. 3. Calculate the Volume of Stock Solution (2) needed to prepare one of the Standard Solutions.
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