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Chemistry
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Why does bromine water become colourless upon the addition of ethene, but not ethane? What is this reaction called?

Bromine water reacts with ethane as it is able to break open the double bond, forming 1,2-dibromoethane. This double bond is not present in ethane, so bromine water does not react with it. This reaction i...

OA
Answered by Omar A. Chemistry tutor
23974 Views

How is the electronic structure of sodium different to chlorine?

(Draw the two out) 

Chlorine has 7 electrons in its outer shell while sodium has only one.

TH
Answered by Tabitha H. Chemistry tutor
5798 Views

titration calculation: 35cm3 of Hydrochloric Acid reacts with 27.5cm3, 0.3mol/dm3 NaOH. What is the Concentration of the Hydrochloric Acid?

  1. Write out what you know:

    HCL - VOL: 35 --- CONC: (x) --- MOL: (x)
    NaOH - VOL: 27.5 --- CONC: 0.3 --- MOL: (x)

  2. Realise what you can work out - Mol of NaOH in ...
GK
Answered by Ghazn K. Chemistry tutor
4871 Views

Give the pH of an alkaline solution

pH 8-14 (anything above pH 7 can be seen as alkaline)

JB
Answered by Jodie B. Chemistry tutor
2908 Views

How do perturbations to a system affect the equilibrium position of a reaction?

If a perturbation is applied to a system in dynamic equilbirium, the position of equilbirium will shift to favour the reaction which minimises the effect of the perturbation. If the forward reaction is ex...

GO
Answered by Gwyndaf O. Chemistry tutor
5138 Views

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