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Chemistry

A Level

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....

Answered by Conor M. • Chemistry tutor

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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...

Answered by Ritvij S. • Chemistry tutor

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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...

Answered by Aaron S. • Chemistry tutor

39235 Views

How can I improve my exam technique?

The best way to improve your exam technique is to do past papers under timed conditions. Be strict with yourself and treat it like an actual exam. Then mark your own paper using the official mark schem...

Answered by Samah L. • Chemistry tutor

4462 Views

What is the significance of a reactant being zero, first, or second order when calculating the rate of a reaction?

In simple terms, we need to know whether a reactant is first, second or zero order if we want to understand what effect changing the concentration of that reactant has on the rate of the reaction.

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Answered by Naomi B. • Chemistry tutor

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