Question Detail

CHM 101 Errors and Stoichiometry Objective Question

Question

What is the molar mass of potassium permanganate (KMnO₄)? (K=39.1, Mn=54.9, O=16.0)
Options
A 110 g/mol
B 142 g/mol
C 158 g/mol
Correct Answer
D 174 g/mol
Correct Answer

Option C is the correct answer.

Detailed Explanation

Molar mass of KMnO₄ = K(39.1) + Mn(54.9) + O₄(4×16.0) = 39.1 + 54.9 + 64.0 = 158 g/mol.

Hint

The notes provide this exact calculation.

Question Info