Answer:
2.51 mol Cu
General Formulas and Concepts:
Math
Pre-Algebra
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Chemistry
Atomic Structure
- Using Dimensional Analysis
- Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
Explanation:
Step 1: Define
1.51 × 10²⁴ atoms Cu
Step 2: Identify Conversions
Avogadro's Number
Step 3: Convert
- Set up: [tex]\displaystyle 1.51 \cdot 10^{24} \ atoms \ Cu(\frac{1 \ mol \ Cu}{6.022 \cdot 10^{23} \ atoms \ Cu})[/tex]
- Multiply/Divide: [tex]\displaystyle 2.50747 \ mol \ Cu[/tex]
Step 4: Check
Follow sig fig rules and round. We are given 3 sig figs.
2.50747 mol Cu ≈ 2.51 mol Cu
