Question

What is the molar mass of potassium permanganate?

Answer 1

Are you asking for the molar mass of potassium permanganate, `KMnO_4`?

Explanation:

`KMnO_4`, which forms beautiful intensely purple crystals, has a molar mass of `158.03` `g*mol^-1`. In other words a mass of `158.03*g` of potassium permanganate has Avogadro's number of potassium permanganate formula units.

You should know how calculate that figure; it is a fairly trivial exercise that involves adding the molar masses of potassium, manganese, and `4` `xx` the molar mass of oxygen.