Search over 10,000 free study notes

To work this out we need the equation: Number of moles = Mass (in grams) / Mr (relative formula mass) We know the mass of carbon dioxide already (88g). We need to work out the Mr of carbon dioxide. The Mr ca...

x 2 + 10x + 24 = 0 First we must factorise the equation, which means put it into brackets. To do this we must find two numbers which multiply to equal 24 and add together to make 10. The only two numbers tha...

Osmosis is the net movement of free water molecules from an area of high er water potential to an area of low er water potential through a partially permeable membrane . Water potential = a measure of the nu...

Sightlines, so you would have to move around frequently.

It is important that you consider a range of factors during your answer, in order to prove your understanding of the subject matter and access the higher marks. Typically for the 16 mark answers you will nee...