Answer
1 mol $iron$ has the greater mass.
Work Step by Step
- 1 mol $iron$:
Molar mass $(Fe)$: 55.8g/mol
Therefore: 1 mol ($Fe$) = 55.8 g
- 1 mol $aluminium$:
Molar mass ($Al$) = 27.0 g/mol
Therefore: 1 mol $Al$ = 27.0g
55.8 g > 27.0 g, so 1 mol of $iron$ has the greater mass.
