A pH-sensitive electrode was calibrated using a series of aqueous standard solutions and the following data for the potential difference for different H⁺ ion concentrations was obtained. By plotting a calibration graph, determine the H⁺ concentration of a solution for which the measured potential difference was 0.761 V.
$\begin{array}{lccccc}\hline\left[\mathrm{H}^{+}\right] / 10^{-3} \mathrm{~mol} \mathrm{dm}^{-3} & 1.01 & 1.99 & 3.02 & 4.02 & 5.01 \\V / \mathrm{V} & 0.768 & 0.750 & 0.739 & 0.732 & 0.726 \\\hline\end{array}$

Question

A pH-sensitive electrode was calibrated using a series of aqueous standard solutions and the following data for the potential difference for different H⁺ ion concentrations was obtained. By plotting a calibration graph, determine the H⁺ concentration of a solution for which the measured potential difference was 0.761 V.

\begin{array}{lccccc}\hline\left[\mathrm{H}^{+}\right] / 10^{-3} \mathrm{~mol} \mathrm{dm}^{-3} & 1.01 & 1.99 & 3.02 & 4.02 & 5.01 \\V / \mathrm{V} & 0.768 & 0.750 & 0.739 & 0.732 & 0.726 \\\hline\end{array}

Quizplus · Accepted Answer

The Answer of A pH-sensitive electrode was calibrated using a series of aqueous standard solutions and the following data for the potential difference for different H⁺ ion concentrations was obtained. By plotting a calibration graph, determine the H⁺ concentration of a solution for which the measured potential difference was 0.761 V. $\begin{array}{lccccc} \hline\left[\mathrm{H}^{+}\right] / 10^{-3} \mathrm{~mol} \mathrm{dm}^{-3} & 1.01 & 1.99 & 3.02 & 4.02 & 5.01 \ V / \mathrm{V} & 0.768 & 0.750 & 0.739 & 0.732 & 0.726 \ \hline \end{array}$

A PH-Sensitive Electrode Was Calibrated Using a Series of Aqueous