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A chemistry graduate student is given 450. mL of a 1.40M benzoic acid (HC,H,CO,) solution. Benzoic acid is a weak acid with K=6.3 × 10°. What mass of NaC,H,CO, should the student dissolve in the HC,H,CO, solution to turn it into a buffer with pH =4.68? You may assume that the volume of the solution doesn't change when the NaC,H,CO, is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits.

A chemistry graduate student is given 450. mL of a 1.40M benzoic acid (HC,H,CO,) solution. Benzoic acid is a weak acid with K=6.3 × 10°. What mass of NaC,H,CO, should the student dissolve in the HC,H,CO, solution to turn it into a buffer with pH =4.68? You may assume that the volume of the solution doesn't change when the NaC,H,CO, is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits.

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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Pls help me asap! make sure to round you final answer to two sig digits. Also don't round any numbers during math only for the final asner pls

A chemistry graduate student is given 450. mL of a 1.40M benzoic acid (HC,H,CO,) solution. Benzoic acid is a weak acid with K,=6.3 × 10 °. What mass of NaC,H,CO, should the student dissolve in the HC,H,CO, solution to turn it into a buffer with pH =4.68? You may assume that the volume of the solution doesn't change when the NaC,HCO, is dissolved in it. Be sure your answer has a unit symbol, and round it 2. to 2 significant digits. x10
Transcribed Image Text:A chemistry graduate student is given 450. mL of a 1.40M benzoic acid (HC,H,CO,) solution. Benzoic acid is a weak acid with K,=6.3 × 10 °. What mass of NaC,H,CO, should the student dissolve in the HC,H,CO, solution to turn it into a buffer with pH =4.68? You may assume that the volume of the solution doesn't change when the NaC,HCO, is dissolved in it. Be sure your answer has a unit symbol, and round it 2. to 2 significant digits. x10
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