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: Be sure to answer all parts.Aspirin or acetyl salicylic acid is synthesized by reacting salicylic acid with acetic anhydride:C7H6O3          + C4H6O3                → C9H8O4  +  C2H4O2 salicylic acid

Problem

Be sure to answer all parts.

Aspirin or acetyl salicylic acid is synthesized by reacting salicylic acid with acetic anhydride:

C7H6O3          + C4H6O3                → C9H8O4  +  C2H4O2 

salicylic acid    acetic anhydride        aspirin        acetic acid

(a) How much salicylic acid is required to produce 0.450 g of aspirin, assuming acetic anhydride is  present in excess? 

(b) Calculate the amount of salicylic acid needed if only 72.8 percent of salicylic acid is converted to aspirin.