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How do amino acids change at different pH?

Amino acids are amphoteric which means they can act as an acid or a base. An isoelectric point is the pH at which an amino acid exists as its zwitterion. A zwitterion is the dipolar ionic form of an amino ac...
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Answered by Zoe C. • Chemistry tutor
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What is chirality? Why is it seen in amino acids?

All amino acids except glycine are chiral molecules. This is also known as optical isomerism. This means that they form isomers that are non-superimposable mirror images of each other. When drawing these dra...
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Answered by Zoe C. • Chemistry tutor
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What are amino acids?

Amino acids are the monomers that form peptides and proteins. There are 20 different amino acids that contain an amino group (NH 2 ), carboxyl group (COOH) and R-group. The general formula is: RCH(NH 2 )COOH...
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Answered by Zoe C. • Chemistry tutor
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How is crude oil separated into fractions?

Crude oil is composed of many hydrocarbons . The crude oil is heated to evaporate it and the vapour rises. There is a temperature gradient up the column (hotter at the bottom, colder at the top). The differe...
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Answered by Daisy D. • Chemistry tutor
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How do I find the molecule from the 1H NMR spectrum?

(Note: proton and 1 H + are the same thing) 1. Draw a table with the following headings: δ / ppm, integral, splitting, observations 2. Count how many peaks there are in the spectrum. (Doublets, triplets etc....
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Answered by Daisy D. • Chemistry tutor
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