how to make potassium permanganate solution

It is prepared from the mineral pyrolusite (MnO 2 ..

Potassium permanganate when heated, decomposes to form potassium manganate, manganese dioxide and oxyge..

Potassium permanganate when heated, decomposes to form potassium manganate, manganese dioxide and oxyge..

1. Take 2 ml of solution. 2. Add 2 ml of perchloric aci..

It is prepared from the mineral pyrolusite (MnO 2 ). The preparation involves following ste..

Formula mass of KNO 3 = (39 amu + 14 amu + 3 x 16 amu) = 101 amu Then, ..

Potassium dichromate = K 2 Cr 2 O 7 GMM = (2 x 39) + (2 x 52) + (7 x 16) = 78 + 104 + 112 g = 294 ..

(called hydration energy) is released in the third step. This compensates the higher energy needed to remove electron in second step. The net effect is that it has greater tendency to lose electrons in solution than other alkali metals and the reaction: Therefore, lithium is the strongest..

Both pollutant and contaminant are similar aspects of environment pollution. They both cause harm to the environment by being introduced in undesirable amounts. Pollutants refer to an excess of substances already present in nature. Oxides of nitrogen from vehicle exhaust in cities is an example of..

In diamond, all the four valencies of each carbon atom are satisfied by bonding to other carbon atoms through regular covalent bonds. The electrons are held tightly between the nuclei, and there are no mobile electrons. Thus diamond structure is a closely packed structure and is extremely unreacti..