help on chemistry crousework!!!!Watch
For all we know you could be doing something about the relative masses of them or some horrid analysis.
Perhaps you should put what you plan to achieve with these two chemicals in the introduction, otherwise I can't see you scoring more than 0.
im doin it as well. gcse cw
u hav 2 study the rate of reaction wen sodium thiosulphate and HCl are mixed. im usin concentration as a variable.
is 1/time directly proportional to concentration?
Where you vary conc. and see how quickly the cross disappears each time.
As conc. increases, more molecules are present and so they collide and react quicker.
SO the cross should disappear sooner. Therefore as concentration increases time decrreases, and if you have a straight line graph, which if i rember correctly you should,
then yes 1/time is directly proportional to concentration.
I think this is right but not 100% sure