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What is Fractional Distillation and how does it work?

Fractional Distillation is a method used in industry to separate different sized hydrocarbons (long chains that consist of hydrogen and carbon ). This is useful as it means crude oil can be separated into mo...
FP
Answered by Fred P. • Chemistry tutor
4353 Views

How should we translate verbs ending in -ing into French?

Unlike in English, French only has one form of the present tense. This means that, no matter how tempting it may be, both 'I do my homework' and 'I am doing my homework' should be translated in exactly the s...
DP
Answered by Daniel P. • French tutor
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Why, in the bromination of phenols, do you not need an acid catalyst like you do in the bromination of benzene?

Benzene's delocalised π electrons means that it is not very nucleophilic and so cannot polarise a neutral molecule and produce the required electrophile. As a result it require a catalyst to form the electro...
SA
Answered by Sian A. • Chemistry tutor
8458 Views

Find the stationary points of the function z = 3x(x+y)3 - x3 + 24x

z = 3x(x+y) 3 - x 3 + 24xDifferentiating partially with respect to x and with respect to y:∂z/∂x = 3(x+y) 3 + 9x(x+y) 2 - 3x 2 + 24∂z/∂y = 9x(x+y) 2 At stationary points: ∂z/∂x = 0 and ∂z/∂y = 0.From ∂z/∂y =...
HT
2779 Views

“Both Scott Fitzgerald’s ‘The Great Gastby’ and Joshua Ferris’ ‘Then We Came to the End’ act as criticisms of capitalism.’” Do you agree with the statement?

Furthermore, through their presentation of the divine ‘The Great Gatsby’ and ‘ Then We Came to the End’ act as criticisms or capitalism. There is a clear correlation between the Western world embracing capit...
CH
4872 Views