Question

what is the molar mass of this compound? kmno₄ remember to round to the hundredths place from the periodic table. 110.04 g/mol 137,000 g/mol 109.00 g/mol 158.04 g/mol

Explanation:

Step1: List atomic masses (periodic table)

K: 39.10 g/mol, Mn: 54.94 g/mol, O: 16.00 g/mol

Step2: Calculate molar mass of KMnO₄

Molar mass = (1×39.10) + (1×54.94) + (4×16.00)
= 39.10 + 54.94 + 64.00
= 158.04 g/mol

Answer:

158.04 g/mol