All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: A 3.57 g sample of KCl-KClO3  mixture is decomposed by heating and produces 119 mL O2(g), measured at 22.4°C and 738 mm Hg. What is the mass percent of KClO 3 in the mixture assuming that all the KClO3 decomposes according to the following equation. KClO3(s) → KClO(s) + O2(s) a) no given answer is close b) 38.2% c) 16.4% d) 19.1 % e)  32.8%

Problem

A 3.57 g sample of KCl-KClO3  mixture is decomposed by heating and produces 119 mL O2(g), measured at 22.4°C and 738 mm Hg. What is the mass percent of KClO 3 in the mixture assuming that all the KClO3 decomposes according to the following equation.

KClO3(s) → KClO(s) + O2(s)

a) no given answer is close

b) 38.2%

c) 16.4%

d) 19.1 %

e)  32.8%