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Chemistry

A Level

Which liquid would you expect to have a higher boiling point, Bromine (Br2) or Iodine I2)? Explain your answer.

Correct answer: Iodine . The asymetirc distribution of electrons leading to an instantaneous dipole would be greater for Iodine than Bormine as it has a higher number of electrons surrounding it's nucleu...

Answered by Jack W. • Chemistry tutor

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What stabilizes a carbocation in a nucleophilic substitution reactions?

Essentially, it is the adjacent atoms or groups attached to the central carbon atom which have the ability to stabilise or destabilise a carbocation. The formation of this carbocation is what determines t...

Answered by Alfie H. • Chemistry tutor

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A white substance is placed on the table in front of you, explain what methods/techniques you could use to determine what compound the substance is

Melting point, NMR, Mass spectrometry, IR spectroscopy

Answered by Gavin I. • Chemistry tutor

2237 Views

In organic chemistry, how can functional groups be easily identified and how can I memorise organic mechanisms?

For both As and A-level, knowing functional groups for organic chemistry is essential. The easiest way to identify functional groups is to understand which bonds are characteristic for the functional grou...

Answered by Niamh S. • Chemistry tutor

4925 Views

A solution of ethanoic acid is made by dissolving 3g of pure liquid propanoic acid in 500cm^3 water. Given the pH of the solution is 2.98, calculate Ka.

Before using numbers from the question: 1)What is pH? pH = -log[H⁺] Square brackets mean concentration of H+ so we need to convert given pH to [H⁺] in the weak acid coefficient 2) To...

Answered by Sofia H. • Chemistry tutor

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