Chemistry: Post your doubts here!

[HubbaBubba]

I'm having difficulty in Oct/Nov 2010 Varient 22. Question 3 (e) (ii). The marking scheme isn't very detailed, how did they get:
2059 kJ?

 

[fhdaly]

Where can I study Application for chemistry part from? Any good site or book?

 

[abcde]

Where can I study Application for chemistry part from? Any good site or book?

You may also want to have a look here: http://www.xtremepapers.com/community/threads/chemistry-biology-physics-applications.11156/

 

[Ashique]

can someone help me with question 6 june 2002 p1? I have an exam tomorrow.

 

[abcde]

can someone help me with question 6 june 2002 p1? I have an exam tomorrow.

AoA! Please get into the habit of posting the links for the question paper and the mark scheme. Makes it easier for others to help.
http://www.xtremepapers.com/CIE/International A And AS Level/9701 - Chemistry/9701_s02_qp_1.pdf
Here's how you tackle question 6:
P1V1 = P2V2
=> (2x1) + (1x2) = 3 x P2
=> P2 = 4/3 = 1 1/3 kPa. (A is correct)

 

[Ashique]

I was about to, but it slipped off my mind. Thanks a lot for helping me tackle that question.. Took me a while to understand.

 

[hassam]

"The idea of tuning the NMR frequency to identify different tissues was not well known" .............how we do this thing mentioned in the statement.....can anyone give the rough idea?

 

[princesszahra]

^^
http://www.spinsights.net/2011/05/when-frequency-does-matter-part-1/

 

[BeeBee]

please i'll love notes on electrochemistry and rate of reaction..i'm really failing those topics..thanks

 

[CaptainDanger]

please i'll love notes on electrochemistry and rate of reaction..i'm really failing those topics..thanks

http://www.chemguide.co.uk/

 

[Hinafatima]

Thanks

 

[Noor]

can any1 help me with the coplanar molecules???

You studying AS or A level chemistry? ._.

 

[Noor]

A Level Chemistry NOTES

Thank you LOADS. I found this amazingly great and helpful. xD

 

[KurayamiKimmi]

hey what do we need to know about disproportion reactions ???!!
coz da chemteachers i have are unorganized (they teach one part of a topic one day and the next part after a week =.=)
thanks for any help ^^

 

[omg]

You studying AS or A level chemistry? ._.

a level

 

[Noor]

a level

Ohh, I'm sorry, I'm studying AS! =/

 

[Hinafatima]

would you people please tell me as how to locate the post given with the abbreviation
viewtopic.php?f=26&t=9156
Thanks

 

[XPFMember]

would you people please tell me as how to locate the post given with the abbreviation
viewtopic.php?f=26&t=9156
Thanks

As-salam-o-alaikum!

Actually, I don't think, you could do that...

Alternatively, you may use the search option....it might be a little help.

 

[Thampi4]

hey, umm what do i hav to study for chem practicals for AS

 

[omg]

Where can I study Application for chemistry part from? Any good site or book?

www.chemguide.co.uk dis site would def helpp!!