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What is Mass Spectrometry?

Mass spectrometry is a technique we use to analyse and determine the structure of compound . Generally, it works by injecting your compound into an ionisation chamber , where it breaks up into smaller fragme...
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Answered by Sinead B. • Chemistry tutor
4188 Views

Show that the integral of tan(x) is ln|sec(x)| + C where C is a constant.

First, recall that tan(x) can be rewritten in terms of sine and cosine. tan(x) = sin(x)/cos(x) The rephrasing of our question suggests that we should try the substitution rule of integration. We should subst...
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Answered by Anja S. • Maths tutor
209678 Views

What else is the definite article (le/la/les) used for in French?

In most instances where English uses the definite article, French does too. However, it has some special uses in French, which I shall explain below. 1) Must be used with all abstract nouns (nouns referring ...
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Answered by James H. • French tutor
4944 Views

How are blood glucose levels controlled in the body?

Blood glucose is controlled by a negative feedback mechanism. When blood glucose levels rise, this is detected by beta cells in the Islets of Langerhans in the pancreas. In response, they secrete insulin whi...
EK
Answered by Emily K. • Biology tutor
4953 Views

What is the difference between a gene, a chromosome and DNA?

Genes, chromosomes and DNA are three vital components of cells and many students often confuse them with each other. DNA stands for Deoxyribose Nucleic Acid. DNA molecules contain the genetic code which is m...
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Answered by Emily H. • Biology tutor
28876 Views