« previous next »
Pages: 1 [2]   Go Down

Author Topic: chemistry CIE past ppr doubt  (Read 3004 times)

Offline Saladin

  • The Samurai
  • Honorary Member
  • SF V.I.P
  • *****
  • Posts: 6530
  • Reputation: 59719
  • Gender: Male
  • I believe in those who believe in me
    • Student Tech
Re: chemistry CIE past ppr doubt
« Reply #15 on: January 09, 2010, 06:49:30 am »
No problem, it was my pleasure and gain.
Logged

Offline sweetie

  • SF Citizen
  • ***
  • Posts: 286
  • Reputation: 258
  • Gender: Female
Re: chemistry CIE past ppr doubt
« Reply #16 on: January 14, 2010, 03:22:41 pm »
hey,,,
i really need ur help guys in que.2.c.i of Nov02 paper2

Thank You in advance :-*
Logged

Offline Saladin

  • The Samurai
  • Honorary Member
  • SF V.I.P
  • *****
  • Posts: 6530
  • Reputation: 59719
  • Gender: Male
  • I believe in those who believe in me
    • Student Tech
Re: chemistry CIE past ppr doubt
« Reply #17 on: January 14, 2010, 03:26:40 pm »
Will look now.
Logged

Offline Saladin

  • The Samurai
  • Honorary Member
  • SF V.I.P
  • *****
  • Posts: 6530
  • Reputation: 59719
  • Gender: Male
  • I believe in those who believe in me
    • Student Tech
Re: chemistry CIE past ppr doubt
« Reply #18 on: January 14, 2010, 03:49:49 pm »
Working on it.
Logged

Offline sweetie

  • SF Citizen
  • ***
  • Posts: 286
  • Reputation: 258
  • Gender: Female
Re: chemistry CIE past ppr doubt
« Reply #19 on: January 14, 2010, 04:07:37 pm »
okay......
Logged

Offline Saladin

  • The Samurai
  • Honorary Member
  • SF V.I.P
  • *****
  • Posts: 6530
  • Reputation: 59719
  • Gender: Male
  • I believe in those who believe in me
    • Student Tech
Re: chemistry CIE past ppr doubt
« Reply #20 on: January 14, 2010, 04:08:19 pm »
Here u go
Logged

Offline Saladin

  • The Samurai
  • Honorary Member
  • SF V.I.P
  • *****
  • Posts: 6530
  • Reputation: 59719
  • Gender: Male
  • I believe in those who believe in me
    • Student Tech
Re: chemistry CIE past ppr doubt
« Reply #21 on: January 14, 2010, 04:08:46 pm »
Please tell me if u fully understand.
Logged

Offline sweetie

  • SF Citizen
  • ***
  • Posts: 286
  • Reputation: 258
  • Gender: Female
Re: chemistry CIE past ppr doubt
« Reply #22 on: January 14, 2010, 04:14:24 pm »
ya i got it... :)
Thank You  ;)
Logged

Offline sweetie

  • SF Citizen
  • ***
  • Posts: 286
  • Reputation: 258
  • Gender: Female
Re: chemistry CIE past ppr doubt
« Reply #23 on: January 14, 2010, 04:22:10 pm »
wait am stuck....
where did u get da 0.06 moles from????????????
Logged

Offline Saladin

  • The Samurai
  • Honorary Member
  • SF V.I.P
  • *****
  • Posts: 6530
  • Reputation: 59719
  • Gender: Male
  • I believe in those who believe in me
    • Student Tech
Re: chemistry CIE past ppr doubt
« Reply #24 on: January 15, 2010, 08:56:09 am »
it is explained in the ethanol table!
Logged

Offline sweetie

  • SF Citizen
  • ***
  • Posts: 286
  • Reputation: 258
  • Gender: Female
Re: chemistry CIE past ppr doubt
« Reply #25 on: January 15, 2010, 03:47:03 pm »
ok.... i guess i got it
thanx 4 da help  :)
Logged

Offline Saladin

  • The Samurai
  • Honorary Member
  • SF V.I.P
  • *****
  • Posts: 6530
  • Reputation: 59719
  • Gender: Male
  • I believe in those who believe in me
    • Student Tech
Re: chemistry CIE past ppr doubt
« Reply #26 on: January 15, 2010, 04:48:57 pm »
Just doing my job.
Logged

Offline sweetie

  • SF Citizen
  • ***
  • Posts: 286
  • Reputation: 258
  • Gender: Female
Re: chemistry CIE past ppr doubt
« Reply #27 on: January 28, 2010, 04:04:02 pm »
hey dude,

could u help me with this?
may07 ,Q9,16,18 -p1
nov02, Q1 - p1
« Last Edit: January 28, 2010, 04:51:45 pm by notty_me »
Logged

Offline vanibharutham

  • SF Citizen
  • ***
  • Posts: 169
  • Reputation: 749
  • Gender: Male
Re: chemistry CIE past ppr doubt
« Reply #28 on: January 30, 2010, 04:25:27 am »
November 2002,
Q1 P1

1 A mixture of 10 cm3 of methane and 10 cm3 of ethane was sparked with an excess of oxygen.
After cooling to room temperature, the residual gas was passed through aqueous potassium
hydroxide.
What volume of gas was absorbed by the alkali?
A 15 cm3
B 20 cm3
C 30 cm3
D 40 cm3

The equation for the reaction is:

CH4(g) + C2H6(g) 5.5 O2(g) ? 3CO2(g) + 5H2O (l)

Avogadro's law states that Equal volumes of ideal or perfect gases, at the same temperature and pressure, contain the same number of particles, or molecules

Therefore,

10cm³ of Methane
10cm³ of Ethane

and 30cm³ of Carbon Dioxide
Logged
A genius is 1% intelligence, 99% effort.

Offline sweetie

  • SF Citizen
  • ***
  • Posts: 286
  • Reputation: 258
  • Gender: Female
Re: chemistry CIE past ppr doubt
« Reply #29 on: February 18, 2010, 05:37:15 pm »
thanx  :D
Logged
Pages: 1 [2]   Go Up
« previous next »