Answer:
0.66 mol Ge
General Formulas and Concepts:
Math
Pre-Algebra
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Chemistry
Atomic Structure
- Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
Stoichiometry
- Using Dimensional Analysis
Explanation:
Step 1: Define
4.0 × 10²³ atoms Ge
Step 2: Identify Conversions
Avogadro's Number
Step 3: Convert
- Set up: [tex]\displaystyle 4.0 \cdot 10^{23} \ atoms \ Ge(\frac{1 \ mol \ Ge}{6.022 \cdot 10^{23} \ atoms \ Ge})[/tex]
- Divide: [tex]\displaystyle 0.664321 \ mol \ Ge[/tex]
Step 4: Check
Follow sig fig rules and round. We are given 2 sig figs.
0.664321 mol Ge ≈ 0.66 mol Ge
