Chapter 6, Problem 6O.4E

(a)

Interpretation Introduction

Interpretation:

The anode of an electrolytic cell was constructed from $\text{Cr,}\text{Pt,}\text{Cu,}\text{and}\text{Ni}$. Oxidation of the electrode or of water will take place at the anode when the electrolyte consists of 1.0M solution of the oxidized metal ions at $\text{pH=7}$ has to be determined.

Concept Introduction:

Species with higher reduction potential or less negative charge undergoes reduction easily than the species having lower reduction potential or more positive charge. It is known as

“Cathode”.

 Species with the lower reduction potential or more negative undergoes oxidation more easily than the species with higher reduction potential. This is known as “anode”.

 Reduction reaction takes place in anodic center, and the oxidation reaction takes place in cathodic center.

(b)

Interpretation Introduction

Interpretation:

The anode of an electrolytic cell was constructed from $\text{Cr,}\text{Pt,}\text{Cu,}\text{and}\text{Ni}$. Oxidation of the electrode or of water will take place at the anode when the electrolyte consists of 1.0M solution of the oxidized metal ions at $\text{pH=7}$ has to be determined.

(c)

Interpretation Introduction

Interpretation:

The anode of an electrolytic cell was constructed from $\text{Cr,}\text{Pt,}\text{Cu,}\text{and}\text{Ni}$. Oxidation of the electrode or of water will take place at the anode when the electrolyte consists of 1.0M solution of the oxidized metal ions at $\text{pH=7}$ has to be determined.

(d)

Interpretation Introduction

Interpretation:

The $\text{pH}$ of $\text{5}\text{.00}\text{mL}$ solution made by $\text{0}\text{.175}\text{m}$ of $\text{NaOH}$ added to phosphoric acid solution has to be estimated.