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You need to prepare an acetate buffer of pH 5.51 from a 0.874 M acetic acid solution and a 2.15 M KOH solution. If you have 830 mL of the acetic acid solution, how many milliliters of the KOH solution do you need to add to make a buffer of pH 5.51? The pK₂ of acetic acid is 4.76. Be sure to use appropriate significant figures. x10 TOOLS mL

You need to prepare an acetate buffer of pH 5.51 from a 0.874 M acetic acid solution and a 2.15 M KOH solution. If you have 830 mL of the acetic acid solution, how many milliliters of the KOH solution do you need to add to make a buffer of pH 5.51? The pK₂ of acetic acid is 4.76. Be sure to use appropriate significant figures. x10 TOOLS mL

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
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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You need to prepare an acetate buffer of pH 5.51 from a 0.874 M acetic acid solution and a 2.15 M KOH solution. If you have 830 mL of the acetic acid solution, how many milliliters of the KOH solution do you need to add to make a buffer of pH 5.51? The pK₂ of acetic acid is 4.76. Be sure to use appropriate significant figures. a x10 TOOLS mL
Transcribed Image Text:You need to prepare an acetate buffer of pH 5.51 from a 0.874 M acetic acid solution and a 2.15 M KOH solution. If you have 830 mL of the acetic acid solution, how many milliliters of the KOH solution do you need to add to make a buffer of pH 5.51? The pK₂ of acetic acid is 4.76. Be sure to use appropriate significant figures. a x10 TOOLS mL
Covalent bonds place constraints on the shapes of biological molecules. As the size and complexity of a biomolecule increases, the chemical focus shifts from covalent bonds to noncovalent interactions. Noncovalent interactions dictate the stable, native conformations of large macromolecules and polymers while permitting the flexibility necessary for their biological functions. Which characteristics of weak noncovalent interactions enable the assembly, stability, and functions of biomolecules? They have a large cumulative effect, although individual interactions are relatively weak. They are stable, requiring a large amount of energy to break. They are transient, whereas covalent bonds tend to be long-lasting. They do not interact with water in the environment. Incorrect
Transcribed Image Text:Covalent bonds place constraints on the shapes of biological molecules. As the size and complexity of a biomolecule increases, the chemical focus shifts from covalent bonds to noncovalent interactions. Noncovalent interactions dictate the stable, native conformations of large macromolecules and polymers while permitting the flexibility necessary for their biological functions. Which characteristics of weak noncovalent interactions enable the assembly, stability, and functions of biomolecules? They have a large cumulative effect, although individual interactions are relatively weak. They are stable, requiring a large amount of energy to break. They are transient, whereas covalent bonds tend to be long-lasting. They do not interact with water in the environment. Incorrect
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