chem 008c Fischer esterification and Structure Elucidation

Select all that is true regarding Nafion resin 417.

a

It is a solvent for Fischer esterification

b

It protonates the carboxylic acid

c

It is a superacid

d

It is a catalyst

e

It is a superbase

It protonates the carboxylic acid

It is a superacid

It is a catalyst

The molecular ion, M+, is

an ionized fragment of the molecule that is smaller than the molecular weight

a positively charged molybdenum ion

the ionized form of the molecule with a mass that corresponds to the molecular weight of the molecule

the largest peak in the NMR spectrum

always the tallest signal in the mass spectrum

the ionized form of the molecule with a mass that corresponds to the molecular weight of the molecule

What is glacial acetic acid?

acetic acid that contains minimal water

When extracting water with diethyl ether, which of the follow statement(s) are correct?

Diethyl ether is more dense than water

Water is more dense than diethyl ether

Water is the bottom layer

Diethyl ether is the bottom layer

The organic and aqueous layers are completely miscible

Water is more dense than diethyl ether
Water is the bottom layer

What important information can be derived from IR spectroscopy?

the total number of carbons in the molecule

the total number of hydrogens in the molecule

the shape of the molecule

the melting and boiling points of the sample

key functional groups present in the sample

key functional groups present in the sample