**Preparation of the KMnO₄ Solution**- Concentration of stockroom solution: 0.3 M- Volume of concentrated KMnO₄ solution: 10.0 ml- Volume of dilute KMnO₄ solution: 150.0 ml- Concentration of dilute KMnO₄ solution: 0.02 M**Preparation of the Standard H₂C₂O₄ Solution**- Number of grams of H₂C₂O₄ * 2H₂O: 0.26 g- Volume of oxalic acid standard solution: 41.2 ml- Concentration of oxalic acid standard solution: 0.59 M**Standardization Procedure**| | Trial 1 | Trial 2 | Trial 3 ||-------------------|---------|---------|---------|| Volume of sulfuric acid added (ml) | 25 | 25 | 25 || Volume of oxalic acid standard (ml) | 10 | 10 | 10 || Initial buret reading of KMnO₄ titrant (ml) | 10.8 | 10.8 | 20.5 || Final buret reading of KMnO₄ titrant (ml) | 20.5 | 20.5 | 30.15 || Volume of KMnO₄ solution added (ml) | 10 | 10 | 9.65 |This document serves to guide the preparation and standardization procedures for potassium permanganate (KMnO₄) solutions and oxalic acid (H₂C₂O₄) standard solutions in a laboratory setting. The data outlines the necessary steps and measurements involved in the process.

Answered: **Preparation of the KMnO₄ Solution**…

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...

See similar textbooks

Related questions

Question

**Preparation of the KMnO₄ Solution**

- Concentration of stockroom solution: 0.3 M
- Volume of concentrated KMnO₄ solution: 10.0 ml
- Volume of dilute KMnO₄ solution: 150.0 ml
- Concentration of dilute KMnO₄ solution: 0.02 M

**Preparation of the Standard H₂C₂O₄ Solution**

- Number of grams of H₂C₂O₄ * 2H₂O: 0.26 g
- Volume of oxalic acid standard solution: 41.2 ml
- Concentration of oxalic acid standard solution: 0.59 M

**Standardization Procedure**

| | Trial 1 | Trial 2 | Trial 3 |
|-------------------|---------|---------|---------|
| Volume of sulfuric acid added (ml) | 25 | 25 | 25 |
| Volume of oxalic acid standard (ml) | 10 | 10 | 10 |
| Initial buret reading of KMnO₄ titrant (ml) | 10.8 | 10.8 | 20.5 |
| Final buret reading of KMnO₄ titrant (ml) | 20.5 | 20.5 | 30.15 |
| Volume of KMnO₄ solution added (ml) | 10 | 10 | 9.65 |

This document serves to guide the preparation and standardization procedures for potassium permanganate (KMnO₄) solutions and oxalic acid (H₂C₂O₄) standard solutions in a laboratory setting. The data outlines the necessary steps and measurements involved in the process.

Expert Solution

Step 1

The standardization of potassium permanganate is done with the help of pure oxalic acid. The reaction is performed in the presence of strong acid like hydrochloric acid or sulfuric acid. The overall reaction for the process of standardization can be represented by the following balanced chemical equation:

$2 {KMnO}_{4} + 3 H_{2} {SO}_{4} + 5 {(COOH)}_{2} \to K_{2} {SO}_{4} + 2 {MnSO}_{4} + 8 H_{2} O + 10 {CO}_{2}$