Osmosis
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Preliminary Results
My preliminary results were a bit rubbish, as I could not really think of anything to do except find out how many spatulas of salt or sugar went into 25ml of water. However these are my results: Sugar into 50ml water = 15 spatulas Salt into 50ml water = 15 spatulas Although pointless I did decide that sugar took longer to dissolve into the water, so would I use salt instead (to save time). I also decided my concentrations. ( I do not understand the language used when talking about concentrations i.e. molars etc. so I will use ratios instead ) The ratio is water (ml) : salt (g) and the letters are what I labelled the boiling tubes as.
A 25 : 0 B 25 : 2 C 25 : 2 D 25 : 2 E 25 : 3 F 25 : 3 G 25 : 3 H 25 : 4 I 25 : 4 J 25 : 4 I am going to measure the weight of the chip (before and after) to the nearest .01g (the nearest the scales will allow)
Obtaining Evidence
Here is my table of results: Tube Salt Mass Before (g) Mass After (g) Change in Mass (g) Change in Mass % A 0g 5.2 ...
