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1) Use the Ka information in your text to calculate the pH of a 0.10 M solution of Ka= 17X10-y sodium formate. (HCHO,) 2) What is the pH of a solution that contains 0.10 M cyanic acid and 0.20 M sodium cyanate? Ra=3,5x10 -4 1og EA [HA J ph= pRa + 1og [A] ph:-pka t log [O.20 Иnge - lery ( 3.5 yio") +lo YIo") Coolo] = - Bi5) +H10410+ -eor 0120 log e204ph=3. Oilu 3) Which of the a olutions is a buffer solution? Give a reason for your answer.

1) Use the Ka information in your text to calculate the pH of a 0.10 M solution of Ka= 17X10-y sodium formate. (HCHO,) 2) What is the pH of a solution that contains 0.10 M cyanic acid and 0.20 M sodium cyanate? Ra=3,5x10 -4 1og EA [HA J ph= pRa + 1og [A] ph:-pka t log [O.20 Иnge - lery ( 3.5 yio") +lo YIo") Coolo] = - Bi5) +H10410+ -eor 0120 log e204ph=3. Oilu 3) Which of the a olutions is a buffer solution? Give a reason for your answer.

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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1) Use the Ka information in your text to calculate the pH of a 0.10 M solution of Ka= 17X10-y sodium formate. (HCHO,) 2) What is the pH of a solution that contains 0.10 M cyanic acid and 0.20 M sodium cyanate? Ra=3,5x10 -4 1og EA [HA J ph= pRa + 1og [A] ph:-pka t log [O.20 Иnge - lery ( 3.5 yio") +lo YIo") Coolo] = - Bi5) +H10410+ -eor 0120 log e204ph=3. Oilu 3) Which of the a olutions is a buffer solution? Give a reason for your answer.
Transcribed Image Text:1) Use the Ka information in your text to calculate the pH of a 0.10 M solution of Ka= 17X10-y sodium formate. (HCHO,) 2) What is the pH of a solution that contains 0.10 M cyanic acid and 0.20 M sodium cyanate? Ra=3,5x10 -4 1og EA [HA J ph= pRa + 1og [A] ph:-pka t log [O.20 Иnge - lery ( 3.5 yio") +lo YIo") Coolo] = - Bi5) +H10410+ -eor 0120 log e204ph=3. Oilu 3) Which of the a olutions is a buffer solution? Give a reason for your answer.
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