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A titration is carried out and 0.04dm^3 of sulphuric acid neutralises 0.08dm^3 sodium hydroxide of concentration 1mol/dm^3. Calculate the concentration of the sulphuric acid.

The first thing to do with this titration calculation is write the balanced symbol equation for the reaction. Using the knowlege that when an acid and base react a salt and water is produced we can write: H ...
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Answered by Victor A. • Chemistry tutor
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when do you use the conditional tense?

When you want to describe a possible outcome or what could happen in the future.
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Answered by Carrie M. • Italian tutor
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Work out the value of (√12 + √3) squared. Assume square roots are positive.

(√12 + √3) squared is just (√12 + √3) mulitipled by itself, so we can rewrite this as (√12 + √3)*(√12 + √3) Now we expandthe brackets. We can mulitply out the brackets using the FOIL method. (First Outside I...
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Answered by Lauren M. • Maths tutor
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How do I develop a composition?

A good place to start with a composition is to look at the set works. Perhaps you have been talking about some of the compositional features of the set works, such as melody and accompaniament, rhythmic vari...
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Answered by Sophie S. • Music tutor
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How can I impress the examiner in the writing paper of my GCSE exam?

So the best way that I have found of impressing an examiner, is through the use of interesting phrases and tenses . Knowing some unique vocab is also good but is more of a sign of having memorised words and ...
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Answered by Joshua D. • French tutor
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