Ch.3 - Chemical ReactionsWorksheetSee all chapters
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: Na2SO3 reacts with HCIO4 according to the reaction Na2SO3(aq) + 2HCIO4(aq) → 2NaClO4(aq) + H2O(l) + SO2(g) You wish to provide a 50% excess of 4.61 wt% aqueous HCIO4 to react with 50.0 mL of 0.0732 M Na2SO3. Calculate the mass of the 4.61 wt% aqueous HCIO4 solution required to provide the 50% excess.

Problem

Na2SO3 reacts with HCIO4 according to the reaction 

Na2SO3(aq) + 2HCIO4(aq) → 2NaClO4(aq) + H2O(l) + SO2(g) 

You wish to provide a 50% excess of 4.61 wt% aqueous HCIO4 to react with 50.0 mL of 0.0732 M Na2SO3. Calculate the mass of the 4.61 wt% aqueous HCIO4 solution required to provide the 50% excess.