Calculate the molecular mass of potassium permanganate, KMnO₄. A)52 amu B)70 amu C)110 amu D)158 amu E)176 amu

Question

Quizplus · Accepted Answer

The molecular formula of potassium permanganate is KMnO4. 
The atomic masses of K, Mn, O, and S are 39.10, 54.94, 16.00, and 32.06 respectively. 
Thus, the molecular mass of KMnO4 is:

(1 x 39.10) + (1 x 54.94) + (4 x 16.00) 
= 39.10 + 54.94 + 64.00 
= 158.04 amu

Therefore, the correct answer is D.

Calculate the Molecular Mass of Potassium Permanganate, KMnO4

Calculate the Molecular Mass of Potassium Permanganate, KMnO₄