Answer:
5.58 × 10²⁴ molecules O₂
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
- Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
Stoichiometry
- Using Dimensional Analysis
Explanation:
Step 1: Define
9.27 mol O₂ (Oxygen)
Step 2: Identify Conversions
Avogadro's Number
Step 3: Convert
- Set up: [tex]\displaystyle 9.27 \ mol \ O_2(\frac{6.022 \cdot 10^{23} \ molecules \ O_2}{1 \ mol \ O_2})[/tex]
- Multiply/Divide: [tex]\displaystyle 5.58239 \cdot 10^{24} \ molecules \ O_2[/tex]
Step 4: Check
Follow sig fig rules. We are given 3 sig figs.
5.58239 × 10²⁴ molecules O₂ ≈ 5.58 × 10²⁴ molecules O₂
