Answer:
0.000538 mol Pb
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
3.24 × 10²⁰ particles Pb (lead)
Step 2: Identify Conversions
Avogadro's Number
Step 3: Convert
- Set up: [tex]\displaystyle 3.24 \cdot 10^{20} \ particles \ Pb(\frac{1 \ mol \ Pb}{6.022 \cdot 10^{23} \ particles \ Pb})[/tex]
- Multiply/Divide: [tex]\displaystyle 0.000538 \ mol \ Pb[/tex]
Step 4: Check
Follow sig fig rules and round. We are given 3 sig figs.
Our final answer is in 3 sig figs, no need to round.
