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How many moles of iron is 6.022 x 10^22 atoms of iron? (Report answer as a number rounded to one place past the decimal.) *

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Space

Answer:

[tex]\displaystyle 0.1 \ mol \ Fe[/tex]

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

6.022 × 10²² atoms Fe (iron)

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

  1. Set up:                    [tex]\displaystyle 6.022 \cdot 10^{22} \ atoms \ Fe(\frac{1 \ mol \ Fe}{6.022 \cdot 10^{23} \ atoms \ Fe})[/tex]
  2. Divide:                    [tex]\displaystyle 0.1 \ mol \ Fe[/tex]

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