IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => Subject Doubts => GCE AS & A2 Level => Sciences => Topic started by: sabrina on April 25, 2011, 03:35:53 pm

Title: chem p5
Post by: sabrina on April 25, 2011, 03:35:53 pm

hi guys
i m really scared for chem cie p5. i really dont get the idea of how to do it. plz guys i have done the pastpapers but still i cant get the technique. plz guys if u all will not help i will fail in p5 as i failed in it in my mock. plz give me any website which would be useful or anything which ur teachers said regarding p5. plz help n thanks in advance

Title: Re: chem p5
Post by: Deadly_king on April 25, 2011, 04:20:43 pm

Quote from: sabrina on April 25, 2011, 03:35:53 pm

hi guys
i m really scared for chem cie p5. i really dont get the idea of how to do it. plz guys i have done the pastpapers but still i cant get the technique. plz guys if u all will not help i will fail in p5 as i failed in it in my mock. plz give me any website which would be useful or anything which ur teachers said regarding p5. plz help n thanks in advance

It's not really about technique here since p5 can differ at any time as you may have another experiment altogether ;)

First you need to understand the experiment that is being done.

Use your knowledge of chemistry to identify the key parts of the experiment like it's aim and positive or negative results.

Then you just need to answer what you are asked for. I believe the examinator's report might be of help ;)

Title: Re: chem p5
Post by: sabrina on April 26, 2011, 01:11:19 pm

thanks i will look at the examiners report.

Title: Re: chem p5
Post by: Deadly_king on April 26, 2011, 07:33:46 pm

Quote from: sabrina on April 26, 2011, 01:11:19 pm

thanks i will look at the examiners report.

No problem ;)

If you still got some doubts, feel free to ask :)

Title: Re: chem p5
Post by: Sue T on May 01, 2011, 06:40:27 pm

very random tip : wenever you plan an experiment with concentration as your independent variable - give them at least 5 different concentrations which are evenly spaced
besides most of the plannings just involve dilutions - so be familiar with that

Title: Re: chem p5
Post by: sabrina on May 06, 2011, 07:27:17 pm

thanks for the tip :)