Option No. 1 at the cathode in both an electrolytic cell and a voltaic cell
Negative ion arrives at the anode, attracted by electrostatic forces, where they lose electrons. Loss of electrons is defined as oxidation.
The reverse process occur at the negative electrode, where positive ions pick up electrons. They are reduced.
<h3><u>Answer;</u></h3>
pH = 6.12
<h3><u>Explanation</u>;</h3>
To calculate the pH of a solution, we use the equation;
pH = -log [H3O+]
Since we are given the hydronium ion (H
3
O
+
) concentration of the solution, we can plug this value into the formula.
pH = - log [ 7.6 × 10^–7 M]
= 6.12
Thus; pH = 6.12