Answer:
18.9 g F₂
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
- Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
Explanation:
Step 1: Define
3.00 × 10²³ molecules F₂
Step 2: Identify Conversions
Avogadro's Number
Molar Mass of F₂ (Diatomic) - 38.00 g/mol
Step 3: Convert
- Set up: [tex]\displaystyle 3.00 \cdot 10^{23} \ molecules \ F_2(\frac{1 \ mol \ F_2}{6.022 \cdot 10^{23} \ molecules \ F_2})(\frac{38.00 \ g \ F_2}{1 \ mol F_2})[/tex]
- Multiply: [tex]\displaystyle 18.9306 \ g \ F_2[/tex]
Step 4: Check
Follow sig fig rules and round. We are given 3 sig figs.
18.9306 g F₂ ≈ 18.9 g F₂
