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: Cryolite, Na3AIF6 (s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. Al2O3 (s) + 6 NaOH(l) + 12 HF(g) → 2 Na 3AlF6 + 9 H2O(g) a) If 13.9 kilograms of Al 2O3 (s),

Solution: Cryolite, Na3AIF6 (s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. Al2O3 (s) + 6 NaOH(l) + 12 HF(g) → 2 Na 3AlF6 + 9 H2O(g) a) If 13.9 kilograms of Al 2O3 (s),

Problem

Cryolite, Na3AIF6 (s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. 

Al2O3 (s) + 6 NaOH(l) + 12 HF(g) → 2 Na 3AlF6 + 9 H2O(g) 

a) If 13.9 kilograms of Al 2O3 (s), 50.4 kilograms of NaOH(l), and 50.4 kilograms of HF(g) react completely, how many kilograms of cryolite will be produced?

b) Which reactants will be in excess? 

c) What is the total mass of the excess reactants left over after the reaction is complete?