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 3E
Summary Introduction
To calculate: The amounts of molecules present in H2O are in one spoonful of water that holds about 18mL water.
Concept introduction: The mass of the molecule is denoted as molecular mass. Molecular mass is calculated by the addition of atomic mass of atoms and by division of number of atoms present in a certain element. It is known as atomic mass unit (amu). The number of molecules should be calculated by the density of water, number of moles in the given volume, and molecular mass.
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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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