Ch.3 - Chemical ReactionsSee 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: Hydrogen fluoride is used in the manufacture of Freon (which...


Hydrogen fluoride is used in the manufacture of Freon (which also destroys ozone in the stratosphere) and in the production of aluminum metal. It is prepared by the reaction

CaF2 + H2SO4      →      CaSO 4 + 2HF 

In one process, 6.00 kg of CaF 2 are treated with an excess of H 2SO4 and yield 2.86 kg of HF. Calculate the percent yield of HF.

a) 76.3%

b) 83.6%

c) 89.2%

d) 93.0%

e) 97.8%