The potential of a corrosion cell composed of nickel (anode) and a hydrogen electrode (cathode) immersed in a 0.3 M NiCl2 solution at a temperature of 70 ℃ is measured to be +0.220 V. What is the pH of the solution?

0.314

Explanation:

The pH of a solution is a measure of the molar concentration of hydrogen ions in the solution and as such is a measure of the acidity or basicity of the solution.

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