A foot powder sample containing Znwas dissolved on 100.00 mL water andwas titrated to the end point color with22.57 mL of 0.01639 M EDTA at pH=4.(a4= 3.61x10-9, KZnY2- = 3.2 × 1016). Thepzn in the sample is:Please fill in the space with a numericalvalue with two digits or two decimalplaces without units

A foot powder sample containing Zn was dissolved on 100.00 mL water and was titrated to the end point color with 22.57 mL of 0.01639 M EDTA at pH=4. (a4= 3.61x10-9, KZnY2- = 3.2 x 1016). The pzn in the sample is: Please fill in the space with a numerical value with two digits or two decimal places without units

A foot powder sample containing Zn was dissolved on 100.00 mL water and was titrated to the end point color with 22.57 mL of 0.01639 M EDTA at pH=4. (a4= 3.61x10-9, KZnY2- = 3.2 x 1016). The pzn in the sample is: Please fill in the space with a numerical value with two digits or two decimal places without units

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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A 0.3045 g of CaCO3 primary standard was dissolved using concentrated HCl, evaporated to incipient dryness and quantitatively transferred to a 250 mL volumetric flask, and diluted to mark. A 10 mL of aliquot was then transferred to an Erlenmeyer flask, together with 5mL buffer and 5 drops of EBT indicator, and was used to standardize the EDTA titrant. The solution turned blue after the addition of 24.10 mL of EDTA. A blank correction was performed and was determined to be 0.4 mL. What is the concentration of EDTA obtained (MW CaCO3 = 100.0869 g/mol)?
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