Answer:
4.5 mol Fe
General Formulas and Concepts:
Math
Pre-Algebra
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Chemistry
Atomic Structure
- Reading a Periodic Table
- Using Dimensional Analysis
Explanation:
Step 1: Define
250 g Fe
Step 2: Identify Conversions
Molar Mass of Fe - 55.85 g/mol
Step 3: Convert
[tex]\displaystyle 250 \ g \ Fe(\frac{1 \ mol \ Fe}{55.85 \ g \ Fe} ) = 4.47628 \ mol \ Fe[/tex]
Step 4: Check
Follow sig fig rules and round; given 2 sig figs.
4.47628 mol Fe ≈ 4.5 mol Fe
