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Describe how crude oil is separated by fractional distillation.

Crude oil is composed of hydrocarbons of different lengths. In a fractional distillation chamber, the crude oil is heated and cooled to different temperatures. The shorter chain hydrocarbons will boil at a l...
SP
Answered by Sophie P. • Chemistry tutor
13366 Views

What is an Oxbridge interviewer looking for?

2 main things: Intellect – your intelligence: This includes showing that you are able to think on your feet, able to logically and clearly articulate a view point and defend it and able to adapt your point o...
MH
2077 Views

Can you solve 18-7x < 12-3x ?

In order to solve this formula, you would need to collect similar terms to the same side and then simplify to work out the value of 'x'. We can do this by collecting all the 'x' terms to one side first, trea...
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Answered by Blessing F. • Maths tutor
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Find the equation of a straight line that passes through the coordinates (12,-10) and (5,4). Leaving your answer in the form y = mx + c

Finding the gradient (m): The gradient is the change in y-axis over the change in x-axis Δy = -10-4= -14 Δx = 12-5=7 Δy/Δx = -14/7 = -2 Accumilating the equation: The equation of a straight line can be deduc...
MM
Answered by Martin M. • Maths tutor
9369 Views

Draw the Hb disocciation curve. Why is it that shape? How is it different in the foetus?

1) Draw and label the axes! x= O 2 partial pressure; y= % saturation/occupancy 2) Sigmoid curve (plateau at 100%) 3) Describe the curve, i.e. rate increases, stays level, then decreases. Shows binding cooper...
GB
2141 Views