Given 100.0 mL of a buffer that is 0.50 M in HOC1 and 0.60 M in NaOC1, what is the pH after 20.0 mL of 1.0 M NaOH has been added? (Ka for HOC1=3.5 × 10-8) O a. 7.55 O b.7.46 O c. 7.70 O d. 7.88 O e. 7.63

Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter17: Principles Of Chemical Reactivity: Other Aspects Of Aqueous Equilibria
Section17.2: Controlling Ph: Buffer Solutions
Problem 4RC: 4. To prepare a buffer containing CH3CO2H and NaCH3CO2 and having a pH of 5, the ratio of the...
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Given 100.0 mL of a buffer that is 0.50 M in HOCI and 0.60 M in NaOC1, what is the pH after 20.0 mL of 1.0 M NaOH has been
added? (K ₂ for HOCI=3.5 × 10-8)
a
a. 7.55
O b.7.46
O c. 7.70
O d. 7.88
e. 7.63
Transcribed Image Text:Given 100.0 mL of a buffer that is 0.50 M in HOCI and 0.60 M in NaOC1, what is the pH after 20.0 mL of 1.0 M NaOH has been added? (K ₂ for HOCI=3.5 × 10-8) a a. 7.55 O b.7.46 O c. 7.70 O d. 7.88 e. 7.63
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