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We need to find the value of X (the water of crystallisation) and to do this we can start by calculating the moles of water lost and the moles of the anhydrous salt (the salt product without water), we do...

As can be seen by studying the gradients of sin(x) at key points such as 0, 90, 180, 270, 360 degrees, the gradient of sin(x) at any point, x, is equal to cos(x). [This would be shown on sketches of the f...

So the most important thing to answer this question is to understand how an equilibrium works: it will always try to counteract the change you are making. For example, if you add more SO₃ into ...

Throughout the play, Marlowe reminds the audience that they have a role in the play and are not just passively witnessing it. He does this through his use of a chorus, removed from the characters of the p...

First Past the Post is the voting system used across the UK (although used in combination with the Party List System in Scotland!). In this system, each voter places a single vote for a candidate standing...