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Chemistry
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You are given a clear solution that is either an alkene or an alkane. Describe a test using bromine water that you could use to determine whether it is an alkene or alkane solution.

1 mark : Indication that the solution and bromine water should be mixed together1 mark : Indicating that the bromine water will de-colourise / go colourless if the solution contains an alkeneOR 1 mark awa...

NH
Answered by Noah H. Chemistry tutor
1884 Views

Part a) Draw the mechanism of the attack of CN- on CH3COCH3 in the presence of HCN Part b) Explain why the product of this reaction does not rotate the plane of plane polarised light

Part a) 1 mark : Show the nucleophilic attack of CN- at the carbonyl forming the O-1 mark : Show the protonation of the O- via the deprotonation of HCNPart b)1 mark: Student has identified that the interm...

NH
Answered by Noah H. Chemistry tutor
3179 Views

What is the empirical formula of a compound with the following composition by mass, 48.0g C, 4.0g H and 48.0g O?

There are 3 Steps to answering this question:But first you need to understand what is meant by empirical formula:The simplest whole number ratio of the atoms of each element present i...

EC
Answered by Eleanor C. Chemistry tutor
4971 Views

Explain what would happen to the pH of a solution of aqueous hydrochloric acid if you add water.

pH is a measure of the concentration of H+ ions contained within a given volume of a solution. Adding water, without increasing the amount of hydrochloric acid particles within the solution, increases the...

MR
3872 Views

A chemist synthesised two solutions A and B, they know one solution is an aldehyde and the other a ketone. Suggest how the chemist could identify which is which and describe any observations they would make

Tollens reagent could be used to identify the the solutions A and B, as the aldehyde solution will oxidise to a carboxylic acid and a ‘silver mirror’ will be observed. Ketones cannot be oxidised further a...

HJ
Answered by Hugo J. Chemistry tutor
1661 Views

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