How does acid-base extraction separate different types of
compounds with different pka?Draw a flow chart illustratring this
type of separation.Write chemical equatiions for each
transformation (converting compounds from organic soluble to
aqueous soluble and vice-versa) that could be used.
zinc organic compounds are less reactive than magnesium organic
compounds. why is this lower reactivity useful? wouldnt chemists
always want the powerful and very reactive reagents? explain
briefly and state the useful principle at play here
Why is the retention time for solvents like CH2Cl2 and pentane
much shorter than the compounds we dissolve in these solvents to
analyze using gas chromatography?
Bonding and Molecular Geometry
Pre-Laboratory Question
1. Most elements exist as components of compounds rather than in
a free state. Explain why.
2. Use colored pencils to lightly shade each element in the
Periodic Table of Electronegativity Values. Color 1 Color 2 Color 3
Color 4 0 – 0.9 1.0 – 1.9 2.0 – 2.9 3.0 – 4.0 Laboratory
Questions
1. How does electronegativity influence the bond character
between two elements?
2. Describe the conditions that make covalent compounds
polar....