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What is the significance of a reactant being zero, first, or second order when calculating the rate of a reaction?

In simple terms, we need to know whether a reactant is first, second or zero order if we want to understand what effect changing the concentration of that reactant has on the rate of the reaction. Zero order...
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Answered by Naomi B. • Chemistry tutor
12724 Views

How would I differentiate cos(2x)/x^1/2

So for this question you can use either the product rule or the quotient rule and I'll run through them both.First the quotient rule:The quotient rule says that if you have h(x)=f(x)/g(x)Then h'(x) = (f'(x)g...
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Answered by George S. • Maths tutor
10186 Views

Solve the equation tanx/cosx = 1 for 0°<x<360°

Firstly we need to rearrange this equation so that it contains only one trigonometric function of x (i.e. tanx, cosx or sinx) which will make it much easier to solve. We can do this in the following way: Fir...
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Answered by Linetta A. • Maths tutor
26262 Views

Integrate the function f(x) = (1/6)*x^3 + 1/(3*x^2) with respect to x, between x = 1 and x = 3^(1/2), giving your answer in the form a + b*3^(1/2) where a and b are constants to be determined.

We can imagine our function as a curve. We have x values on the x axis and f(x) values on the y axis of our graph. The question is essentially asking us to find the area between the curve, the x axis and the...
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Answered by Daniel V. • Economics tutor
4395 Views

How can I improve my French without actually trying?

Sadly, we can't all go to France on holiday to polish up our French... A way of learning vocabulary that I have found very useful and also enjoyable is to listen to songs and the radio in French. You could a...
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Answered by Mathilde R. • French tutor
3204 Views