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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 the buffer system (remember to show it...
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Answered by Ritvij S. • Chemistry tutor
3584 Views

How to effectively structure a comparative essay?

When comparing two texts it is important to write out a rough plan, as it can often be confusing and all over the place when dealing with two texts and not planning properly! The comparative essay will usual...
NM
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Explain why it is important to take a full course of prescribed antibiotics.

An individual may feel better before completing a full course of antibiotics, however, this does not mean that all of the bacteria in the body have been destroyed. If low levels of bacteria remain in the bod...
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Answered by Laura M. • Biology tutor
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Mark wants to borrow money to buy a car. His bank offers him a loan of £5,000 to be payed back over 3 years at 4% compound interest. a) Work out the interest acquired in the 2nd year. b) In total how much will Mark end up paying back the bank?

In questions concerning compound interest , interest is added to principle sum at the end of each year. Therefore, the interest increases each year as you are paying interest on interest . a) To work out the...
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Answered by Laura M. • Maths tutor
5560 Views

How to get A and A* in Maths?

It may sound cliched - however to get the highest marks in Maths at A levels means going beyond your exam board! Do not just rely on the past paper questions from your exam board but try a few papers from th...
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Answered by Arth D. • Maths tutor
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