A technician is adding 50 ml of 1M NaOH to 2000 ml of a 150 mM solution of the carbonic acid buffer that had an initial pH 8.9. They know that at the initial pH the concentration of weak acid was 0.143 M and the concentration of conjugate base was 0.007 M. What pH will the resulting final solution have? Show all details of your working out for each individual mathematical manipulation that you do apply (skipping steps will receive a deduction). The calculation must be presented such that it can be recapitulated by the marker. In each step of your working out use the chemical formulas of the compounds that constitute the weak acid and conjugate base. Provide the final pH to 1 decimal place, make sure to round the result accordingly. State the final answer in a complete sentence.
A technician is adding 50 ml of 1M NaOH to 2000 ml of a 150 mM solution of the carbonic acid buffer that had an initial pH 8.9. They know that at the initial pH the concentration of weak acid was 0.143 M and the concentration of conjugate base was 0.007 M. What pH will the resulting final solution have? Show all details of your working out for each individual mathematical manipulation that you do apply (skipping steps will receive a deduction). The calculation must be presented such that it can be recapitulated by the marker. In each step of your working out use the chemical formulas of the compounds that constitute the weak acid and conjugate base. Provide the final pH to 1 decimal place, make sure to round the result accordingly. State the final answer in a complete sentence.
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 technician is adding 50 ml of 1M NaOH to 2000 ml of a 150 mM solution of the carbonic acid buffer that had an initial pH 8.9. They know that at the initial pH the concentration of weak acid was 0.143 M and the concentration of conjugate base was 0.007 M. What pH will the resulting final solution have? Show all details of your working out for each individual mathematical manipulation that you do apply (skipping steps will receive a deduction). The calculation must be presented such that it can be recapitulated by the marker. In each step of your working out use the chemical formulas of the compounds that constitute the weak acid and conjugate base. Provide the final pH to 1 decimal place, make sure to round the result accordingly. State the final answer in a complete sentence.
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