Fundamentals of Biochemistry: Life at the Molecular Level
5th Edition
ISBN: 9781118918401
Author: Donald Voet, Judith G. Voet, Charlotte W. Pratt
Publisher: WILEY
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Chapter 2, Problem 15E
Summary Introduction
To calculate: The pH of the given solution after mixing of all given solutions and being diluted till 200mL.
Concept introduction: The pH of a solution is denoted as the negative logarithm of the hydrogen ion concentration of that solution. The pH in a solution decreases as H+ ion concentration increases in the solution. The pH of a neutral aqueous solution is 7; if it exceeds 7 it is a base, if it below 7 it is an acid. pH is a concentration measurement of hydrogen ions present in an aqueous solution. pKa is the acid dissociation constant of the element that is more related to the pH of that element and has a particular value.
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Calculate pH of a solution prepared by dissolving 1.60g of sodium acetate, in 88.5 mL of 0.10 M acetic acid. Assume the volume change upon dissolving the sodium acetate is negligible. Ka is 1.75 x 10^-5
Chapter 2 Solutions
Fundamentals of Biochemistry: Life at the Molecular Level
Ch. 2 - Prob. 1ECh. 2 - 2. Rank the water solubility of the following...Ch. 2 - 3. Approximately how many molecules of H2O are in...Ch. 2 - 4. An E. coli cell contains about 2.6 × 108 ions,...Ch. 2 - Prob. 5ECh. 2 - Prob. 6ECh. 2 - 7. Describe what happens when a dialysis ban...Ch. 2 - 8. A red blood cell his an internal salt...Ch. 2 - 9. Draw the structures of the conjugate bases of...Ch. 2 - Prob. 10E
Ch. 2 - 11. Indicate the ionic species of ammonia that...Ch. 2 - 12. Indicate the ionic species of phosphoric acid...Ch. 2 - 13. Calculate the pH of a 200 mL solution of pure...Ch. 2 - 14. Calculate the pH of a 1 L solution containing...Ch. 2 - 15. A solution is nude by mixing 50 mL of 2.0 M...Ch. 2 - 16. What is the pK of the weak acid HA if a...Ch. 2 - 17. (a) At any instant, how many water molecules...Ch. 2 - 18.
Would phosphoric acid or succinic acid be a...Ch. 2 - 19. Use Coulomb’s law (Equation 2-1) to explain...Ch. 2 - Prob. 20CQCh. 2 - 21. Certain C—H groups can form weak hydrogen...Ch. 2 - 22. Explain why water forms nearly spherical...Ch. 2 - Prob. 23CQCh. 2 - 24. You have a 5 ml. sample of a protein in 0.5 M...Ch. 2 - 25. Patients with kidney failure frequently...Ch. 2 - 26. The kidneys function to eliminate ammonia from...Ch. 2 - Prob. 27CQCh. 2 - Prob. 28CQCh. 2 - 29. How many grams of sodium succinate (formula...Ch. 2 - 30. Estimate the volume of a solution of 5 M NaOH...Ch. 2 - 31. You need a buffer at pH 7.5 for use in...Ch. 2 - Prob. 32CQCh. 2 - MORE TO EXPLORE Compare and contrast the...
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