A student is trying to prepare a 100.0 mL buffer solution by using acetic acid/sodium acetate trihydrate “HC2H3O2 with NaC2H3O2.3H2O” (pka for the acetic acid = 4.74) a) If the sock concentration of acetic acid is 12.0 M. and the molar mass of the sodium salt = 136.1 g/mol. Calculate the volume of the acid (in mL) and the mass of the sodium salt (in g) that is required to make 100.0 mL of 0.240 M acetic acid/sodium acetate buffer so that the buffer become the most effective. (in another words, how many mL of the acid from the stock concentration and how many grams of the sodium salt and how many mL of water you need to mix to make 100.0 mL buffer). Volume =........................ Mass=......................
A student is trying to prepare a 100.0 mL buffer solution by using acetic acid/sodium acetate trihydrate “HC2H3O2 with NaC2H3O2.3H2O” (pka for the acetic acid = 4.74) a) If the sock concentration of acetic acid is 12.0 M. and the molar mass of the sodium salt = 136.1 g/mol. Calculate the volume of the acid (in mL) and the mass of the sodium salt (in g) that is required to make 100.0 mL of 0.240 M acetic acid/sodium acetate buffer so that the buffer become the most effective. (in another words, how many mL of the acid from the stock concentration and how many grams of the sodium salt and how many mL of water you need to mix to make 100.0 mL buffer). Volume =........................ Mass=......................
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 student is trying to prepare a 100.0 mL buffer solution by using acetic acid/sodium acetate trihydrate “HC2H3O2 with NaC2H3O2.3H2O” (pka for the acetic acid = 4.74)
a) If the sock concentration of acetic acid is 12.0 M. and the molar mass of the sodium salt = 136.1 g/mol. Calculate the volume of the acid (in mL) and the mass of the sodium salt (in g) that is required to make 100.0 mL of 0.240 M acetic acid/sodium acetate buffer so that the buffer become the most effective. (in another words, how many mL of the acid from the stock concentration and how many grams of the sodium salt and how many mL of water you need to mix to make 100.0 mL buffer).
Volume =........................
Mass=......................
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