Respuesta :

Space

Answer:

0.000104 mol

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Chemistry

Atomic Structure

  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Stoichiometry

  • Using Dimensional Analysis

Explanation:

Step 1: Define

6.27 × 10¹⁹ atoms

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

  1. Set up:                               [tex]\displaystyle 6.27 \cdot 10^{19} \ atoms(\frac{1 \ mol}{6.022 \cdot 10^{23} \ atoms})[/tex]
  2. Multiply/Divide:                 [tex]\displaystyle 0.000104 \ mol[/tex]

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

Since our final answer already has 3 sig figs, there is no need to round.

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