Potassium Manganate Solution

[chemistrygiant03 (Shadiah Khalid)]

How do i produce 0.02M of potassium manganate solution without using glass wool? what other alternative could i use?

[Ankur (Ankur Choudhary)]

Producing a 0.02 M solution of potassium manganate (KMnO4) without using glass wool can be done by following these steps:

1. Weigh out the appropriate amount of KMnO4 required to make the solution. The molar mass of KMnO4 is 158.034 g/mol, so to make a 0.02 M solution, you will need to weigh out 3.161 g of KMnO4.
2. Add the KMnO4 to a volumetric flask containing a small amount of distilled water. Swirl the flask gently to dissolve the KMnO4.
3. Once the KMnO4 is fully dissolved, add more distilled water to the flask until it reaches the mark on the neck of the flask. Make sure to mix the solution thoroughly to ensure it is homogenous.
4. There are several alternatives that can be used in place of glass wool, such as filter paper or a funnel with a fritted disk. These can be used to filter the solution if any solid particles remain after dissolving the KMnO4.

Note: It is important to handle KMnO4 with care as it is a strong oxidizing agent and can cause skin and eye irritation. It is recommended to wear gloves and eye protection when handling this chemical.