### Cyanide Ion Selective Electrode Calibration**Equation and Conditions:**A cyanide ion selective electrode obeys the equation:\[ E (\text{volts}) = \text{constant} - 0.05916 \log [\text{CN}^-] \]The measured potential was **-0.224 V** when immersed in **0.00100 M NaCN**.**Questions:**a) **Determine the Numerical Constant:** Calculate the value of the numerical constant from the calibration equation. - Answer: \(-0.40\)b) **Calculate \([\text{CN}^-]\):** Using the constant from part (a), determine the \([\text{CN}^-]\) in a solution with a potential of **E = -0.286 V**.

We will first calculate the numerical constant because we have to use this constant for solving the second question. The measured potential is already given and also the concentration of CN-. we just have to put the value in the equation to get the constant. the calculations are shown below-a) So numerical constant=-0.40148 b)Concentration of [CN-]=0.0112M

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2) A cyanide ion selective electrode obeys the equation : E (volts) = constant - 0.05916 log [CN-] The measured potential was - 0.224 V when immersed in 0.00100 M NaCN. a) What is the value of the numerical constant from the calibration equation? -0.402 b) Using (a), what is the [CN] in a solution with an E= -0.286 V ?

2) A cyanide ion selective electrode obeys the equation : E (volts) = constant - 0.05916 log [CN-] The measured potential was - 0.224 V when immersed in 0.00100 M NaCN. a) What is the value of the numerical constant from the calibration equation? -0.402 b) Using (a), what is the [CN] in a solution with an E= -0.286 V ?

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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