amide

An organic functional group similar to amine, except a carbonyl is next to it. (Its formula is RC(O) NR2)

However, amide is very different to amines due to the delocolization of the lone pair to oxygen. This makes amides unreactive.

by chemguide August 10, 2019

methyl orange

A pH indicator (most commonly) used in acidic conditions.

In acidic conditions methyl orange is red but in neutral / basic conditions it is yellow.

by chemguide August 11, 2019

cyclohexane

The most stable cycloalkane. It has a 6-membered carbon ring with all hydrogen atoms surronding it

Cyclohexane also has 2 conformers: chair and boat. The chair conformer is more stable because of its reduced strain.

by chemguide August 12, 2019

theophylline

A dimethyl derivative of xanthine, structurally similar to theobromine.

Theophylline is used in therapy for respiratory diseases.

by chemguide August 11, 2019

Cathode

The positive electrode where electrons are moved to.

In a battery, the metal ions in cathode gains electrons while the anode loses.

by chemguide August 05, 2019

Tetrahydrofuran

Tetrahydrofuran (THF) is a cyclic ether (heterocyclic compound) with a 5-member ring and an oxygen atom inside. Its formula is C4H8O

We need ionic compounds for this reaction! Use tetrahydrofuran or it won't dissolve!

by chemguide August 10, 2019

aldehyde

A class of organic compound with the formula of R CHO, with the R being an organic functional group.

The most common aldehyde is formaldehyde, but the more complex ones, such as benzaldehyde, is found in almond oil.

by chemguide August 10, 2019