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)Find the volume and the mass 2) how many mL of 0.050M NaOH you need to add 20.0mL of this buffer to change the pH of the buffer by 0.15.

)Find the volume and the mass 2) how many mL of 0.050M NaOH you need to add 20.0mL of this buffer to change the pH of the buffer by 0.15.

Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter14: Equilibria In Acid-base Solutions
Section: Chapter Questions
Problem 34QAP: A buffer is prepared using the butyric acid/butyrate (HC4H7O2/C4H7O2)acid-base pair. The ratio of...
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1)Find the volume and the mass 2) how many mL of 0.050M NaOH you need to add 20.0mL of this buffer to change the pH of the buffer by 0.15.
A student is trying to prepare a 100.0 mL buffer solution by using acetic acid/sodium acetate trihydrate "HC,H3O2 with NaC,H3O2.3H,O" (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 home many grams of the sodium salt and how many mL of water you need to mix to make 100.0 mL buffer).
Transcribed Image Text:A student is trying to prepare a 100.0 mL buffer solution by using acetic acid/sodium acetate trihydrate "HC,H3O2 with NaC,H3O2.3H,O" (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 home many grams of the sodium salt and how many mL of water you need to mix to make 100.0 mL buffer).
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