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Chemistry
A Level

What are optical isomers?

Optical isomerism is a paritcular type of steroeisomerism (stereoisomers are molecule that are made up of atoms joined up in the same order so have the same formula but are arranged di...

AS
Answered by Aneesh S. • Chemistry tutor
5461 Views

What happens when some alkali is added to a buffer solution?

The dissociation of the weak acid ‘HA’ would be shown as:HA (aq) ⇌ H+ (aq) + A– (aq)Adding alkali will add OH- ions to the solution. These will react with the H+

HD
Answered by Holly D. • Chemistry tutor
14774 Views

Using chemical reagents in test tubes, distinguish between isomers: A CH3CO(CH2)2CHOH, B CH3CH(OH)(CH2)2CHO and C C(CH3)2OHCOCH3

Answer:

*First draw out each compounds' structural formula (an image of the "shape and arrangement of the atoms in space"), then identify all functional groups in each compound....

CM
Answered by Conor M. • Chemistry tutor
19196 Views

How do you answer a long answer question on how buffer systems work?

1) First, state how the buffer is prepared by saying that an excess of acid reacts with a base (include the equation for this reaction)

b) Write the overall equation of t...

RS
Answered by Ritvij S. • Chemistry tutor
3213 Views

Predict the effect of an increase in pressure and temperature on the production of ammonia in the reaction: N2(g) + 3H2(g) <-> 2NH3 (g) , where the change in enthalpy is -92.4 kJ

An increase in temperature and an increase in pressure will have contradictory effects on the reaction.

The effect of an increase in the temperature of a system, on the equilibrium of a r...

AS
Answered by Aaron S. • Chemistry tutor
41201 Views

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