Answer
The molar mass for $Fe_2O_3$ is equal to 159.7 g
Work Step by Step
1. Identify the molar mass for each element in this compound:
$Fe: 55.85$ g
$O: 16.00$ g
2. Multiply each one of them by their respective subscript number:
$Fe: 55.85$ g * 2 = 111.70 g
$O: 16.00$ g * 3 = 48.00 g
3. Calculate the total sum of these values:
$111.70g + 48.00g = 159.7g$