Respuesta :

Space

Answer:

0.9 mol KMnO

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

  • Reading a Periodic Table

Stoichiometry

  • Using Dimensional Analysis

Explanation:

Step 1: Define

100 g KMnO

Step 2: Identify Conversions

Molar Mass of K - 39.10 g/mol

Molar Mass of Mn - 54.94 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of KMnO - 39.10 + 54.94 + 16.00 = 110.04 g/mol

Step 3: Convert

  1. Set up:                    [tex]\displaystyle 100 \ g \ KMnO(\frac{1 \ mol \ KMnO}{110.4 \ g \ KMnO})[/tex]
  2. Divide:                    [tex]\displaystyle 0.90876 \ mol \ KMnO[/tex]

Step 4: Check

Follow sig fig rules and round. We are given 1 sig fig.

0.90876 mol KMnO ≈ 0.9 mol KMnO

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