Answer:
221.88 g/mol
General Formulas and Concepts:
Chemistry
Step-by-step explanation:
Step 1: Define
Mn₂O₇
Step 2: Identify
Molar Mass of Mn - 54.94 g/mol
Molar Mass of O - 16.00 g/mol
Step 3: Find MM
Molar Mass of Mn₂O₇ - 2(54.94) + 7(16.00) = 221.88 g/mol