(Solved): A chemist prepares a solution of potassium permanganate (KMnO4) by measuring out 2.09g of pota ...

A chemist prepares a solution of potassium permanganate $\left({\mathrm{KMnO}}_4\right)$ by measuring out $2.09\mathrm{g}$ of potassium permanganate into a 250 . mL volumetric fiask and fining the flask to the mark with water. Caiculate the concentration in moll of the chemist's potassum permanganate solution. Round your answer to 3 significant digits.