a) The selectivity coefficient for a Bromide ion-selective electrode is K Br,OH 0.15. What will the change in the electrode potential be for a 1.4 x 10 M Br¯ at pH 5.5 if the pH is raised to pH 11.0? b) A pH probe is calibrated against pH 4 and pH 7 buffers. For pH 4 buffer, E = 200 mV and for pH 7 buffer, E = 23 mV. If the potential for an unknown solution is 157 mV, calculate the pH of the solution. Shew yo wk
a) The selectivity coefficient for a Bromide ion-selective electrode is K Br,OH 0.15. What will the change in the electrode potential be for a 1.4 x 10 M Br¯ at pH 5.5 if the pH is raised to pH 11.0? b) A pH probe is calibrated against pH 4 and pH 7 buffers. For pH 4 buffer, E = 200 mV and for pH 7 buffer, E = 23 mV. If the potential for an unknown solution is 157 mV, calculate the pH of the solution. Shew yo wk
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Chapter1: Chemical Foundations
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![a) The selectivity coefficient for a Bromide ion-selective electrode is K
Br,OH
0.15. What will the change in the electrode potential be for a 1.4 x 10 M Br at pH 5.5 if the
pH is raised to pH 11.0?
b) A pH probe is calibrated against pH 4 and pH 7 buffers. For pH 4 buffer, E = 200 mV and for
pH 7 buffer, E = 23 mV. If the potential for an unknown solution is 157 mV, calculate the pH of
the solution.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8d6a840f-76a9-42b6-9d22-f8b422a8dd7e%2F174c6f14-bbcb-47ca-a750-ec19b9ca3cbf%2F4oloa1c_processed.png&w=3840&q=75)
Transcribed Image Text:a) The selectivity coefficient for a Bromide ion-selective electrode is K
Br,OH
0.15. What will the change in the electrode potential be for a 1.4 x 10 M Br at pH 5.5 if the
pH is raised to pH 11.0?
b) A pH probe is calibrated against pH 4 and pH 7 buffers. For pH 4 buffer, E = 200 mV and for
pH 7 buffer, E = 23 mV. If the potential for an unknown solution is 157 mV, calculate the pH of
the solution.
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