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What is a mole and why is it useful?

The number of moles is related to the amount of a substance we have. If we were to use the number of particles, the numbers would be huge and impractical to use. So, Avagadro's number provides us a link with...
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Answered by Michael L. • Chemistry tutor
3845 Views

How can I showcase my passion for a subject I am applying to study?

The important thing to do when starting a personal statement is to have a good think about why you are applying for the subject instead of all the other courses available. Write down all the characteristics ...
KM
6213 Views

Rearrange the following to make C the subject (3c+B)/2=C+A

to work this out you need to make the equation equal to C so it will look like C=A+B or something similar. to achieve this you need to change the equation so that C only appears on one side. you would need t...
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Answered by Oran R. • Maths tutor
5562 Views

The equation of a curve is x(y^2)=x^2 +1 . Using the differential, find the coordinates of the stationary point of the curve.

Firstly we need to use product rule to find the dy/dx of the left hand side (LHS). Using implicit differentiation, we know the differential of y^2 is 2y(dy/dx). Then use to product rule to obtain the dy/dy o...
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Answered by Grace C. • Maths tutor
6764 Views

Where do the kinematics equations (SUVAT) come from?

mathematical derivation
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Answered by Kunal P. • Maths tutor
5008 Views