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Heating 3.210g of hydrated magnesium sulfate, MgSO4.XH2O, forms 1.567g of anhydrous magnesium sulfate. Find the value of X and write the formula of the hydrated salt

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 th...
SR
17751 Views

How do I differentiate the trigonometric functions sin(x) and cos(x) ?

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 func...
TY
Answered by Theodore Y. • Maths tutor
5470 Views

For the reaction, 2SO2(g) + O2(g) => 2SO3(g), suggest the optimal conditions to maximise yield of SO3 when the forward reaction is exothermic.

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 SO 3 into the mixture, ...
AB
Answered by Andre B. • Chemistry tutor
19992 Views

Is Doctor Faustus an updated morality play or is it a reflection on a God who allows his subjects no chance from the start?

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 play...
MS
4100 Views

How does First Past the Post work, and what are some of its advantages/disadvantages?

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 in...
HS
3862 Views