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What is the difference between SN1 and SN2 reactions, and how do you determine via which mechanism the reaction will proceed?

This is the sort of question you are likely to stumble across in an IB HL Paper 2 examination. It would probably carry a few more marks and thus require a longer answer, but that is reason to panic!First of ...
JG
Answered by James G. • Chemistry tutor
14060 Views

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...
SB
Answered by Sinead B. • Chemistry tutor
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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...
AS
Answered by Anja S. • Maths tutor
209898 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 ...
JH
Answered by James H. • French tutor
4997 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
4993 Views