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Answered

Consider the following balanced equation:
2KCIO3(s) → 2KCl(s) + 302(g)
How many moles of O2 will be obtained by decomposing
3.50 moles of KCIO3?
0.530 mole
O 3.00 moles
O 2.30 moles
5.25 moles

Answer :

SPACEGO

Answer:

5.25 moles

General Formulas and Concepts:

Chemistry

Atomic Structure

  • Compounds
  • Moles

Aqueous Solutions

  • States of matter

Stoichiometry

  • Analyzing reactions RxN
  • Using Dimensional Analysis

Explanation:

Step 1: Define

[RxN - Balanced] 2KClO₃ (s) → 2KCl (s) + 3O₂ (g)

[Given] 3.50 mol KClO₃

[Solve] mol O₂

Step 2: Identify Conversions

[RxN] 2 mol KClO₃ (s) → 3 mol O₂ (g)

Step 3: Stoichiometry

  1. [DA] Set up conversion:                                                                                  [tex]\displaystyle 3.50 \ mol \ KClO_3(\frac{3 \ mol \ O_2}{2 \ mol \ KClO_3})[/tex]
  2. [DA} Multiply [Cancel out units]:                                                                      [tex]\displaystyle 5.25 \ mol \ O_2[/tex]

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