« previous next »
Pages: 1 ... 5 6 [7] 8 9 ... 227   Go Down

Author Topic: CHEM AND BIO HELP AND TIPS HERE  (Read 350752 times)

Offline @d!_†oX!©

  • SF Master
  • ******
  • Posts: 1268
  • Reputation: 2105
  • Gender: Male
Re: ~~~All Chemistry Doubts Here~~~
« Reply #90 on: November 07, 2009, 11:13:08 am »
at the same temperature and pressure do all molecules of a gas move at the same speed???
Logged
AAL IZZ WELL!!! ;)

Offline Ghost Of Highbury

  • O_o_O lala!
  • SF Farseer
  • *******
  • Posts: 4096
  • Reputation: 41428
  • Gender: Male
  • Namaskaram!
Re: ~~~All Chemistry Doubts Here~~~
« Reply #91 on: November 07, 2009, 11:14:38 am »
thanks adi...i had ritten methane and water and got that rong..though i cud get the equation

4got abt steam

thanks again

@eightAs - thats seperation

@adi - its a weird question, i guess yes, however if there are other particles like dust, some particles may move at different speed due to brownian motion
Logged
divine intervention!

Offline eightAs

  • SF Immigrant
  • **
  • Posts: 58
  • Reputation: 134
  • Gender: Male
  • Math geek
Re: ~~~All Chemistry Doubts Here~~~
« Reply #92 on: November 07, 2009, 11:16:09 am »
Mis-interpreted it. I thought he meant obtain in the context of seperation.
Logged
Coldplay FTW!

nid404

  • Guest
Re: ~~~All Chemistry Doubts Here~~~
« Reply #93 on: November 07, 2009, 11:21:55 am »
@adi_toxic- No. They don't move with the same velocity. There's an equation to find out the velocities of molecules......not for igcse...so don't bother..
Logged

Offline @d!_†oX!©

  • SF Master
  • ******
  • Posts: 1268
  • Reputation: 2105
  • Gender: Male
Re: ~~~All Chemistry Doubts Here~~~
« Reply #94 on: November 07, 2009, 11:23:21 am »
Quote from: A@di on November 07, 2009, 11:14:38 am
thanks adi...i had ritten methane and water and got that rong..though i cud get the equation

4got abt steam

thanks again

@eightAs - thats seperation

@adi - its a weird question, i guess yes, however if there are other particles like dust, some particles may move at different speed due to brownian motion
there are no other particles..its a sample of only carbon dioxide....then???
Logged
AAL IZZ WELL!!! ;)

Offline dlehddud

  • A New Zealander=Kiwi
  • SF Citizen
  • ***
  • Posts: 171
  • Reputation: 11278
  • Gender: Male
  • NZNZNZNZNZNZNZNZNZNZNZNZNZNZNZNZ
Re: ~~~All Chemistry Doubts Here~~~
« Reply #95 on: November 07, 2009, 11:23:33 am »
Quote from: nid404 on November 07, 2009, 10:14:46 am
in case they don't mention the HCl reaction.....write both...they won't cut ur marks....they'll be impressed :D
bt isnt the whole point of the qualitative analysis to differentiate between aluminum and zinc?
cos they both produce white ppt which dissolve in NaOH and aluminium produces insoluble white ppt in NH3 whilst zinc still produces a white ppt that dissolves in NH3..
isn't that why they mentioned ammonia? It's just bcos i've never heard of the HCl part,,   
Logged
I swear exams are going to be the end of me someday

Offline @d!_†oX!©

  • SF Master
  • ******
  • Posts: 1268
  • Reputation: 2105
  • Gender: Male
Re: ~~~All Chemistry Doubts Here~~~
« Reply #96 on: November 07, 2009, 11:23:49 am »
Quote from: nid404 on November 07, 2009, 11:21:55 am
@adi_toxic- No. They don't move with the same velocity. There's an equation to find out the velocities of molecules......not for igcse...so don't bother..
ohhkkk...u sure naa????
Thanks den....
Logged
AAL IZZ WELL!!! ;)

nid404

  • Guest
Re: ~~~All Chemistry Doubts Here~~~
« Reply #97 on: November 07, 2009, 11:25:39 am »
yaa im sure. Check the maxwell boltzman graph(attached) for an idea.....
Logged

Offline @d!_†oX!©

  • SF Master
  • ******
  • Posts: 1268
  • Reputation: 2105
  • Gender: Male
Re: ~~~All Chemistry Doubts Here~~~
« Reply #98 on: November 07, 2009, 11:31:03 am »
ooohhhhkkaaayyyy!!!!
bt i didnt understand anything from dt graoh lol.. :P
its kk i got my ans nid!!Thanks
Logged
AAL IZZ WELL!!! ;)

nid404

  • Guest
Re: ~~~All Chemistry Doubts Here~~~
« Reply #99 on: November 07, 2009, 11:39:47 am »
Quote from: @d!_†oX!© on November 07, 2009, 11:31:03 am
ooohhhhkkaaayyyy!!!!
bt i didnt understand anything from dt graoh lol.. :P
its kk i got my ans nid!!Thanks

oops!!

anyway u got it naa...bas :D
Logged

Offline @d!_†oX!©

  • SF Master
  • ******
  • Posts: 1268
  • Reputation: 2105
  • Gender: Male
Re: ~~~All Chemistry Doubts Here~~~
« Reply #100 on: November 07, 2009, 11:41:35 am »
yaaa...lol....thanxx!!!!!!
xD
Logged
AAL IZZ WELL!!! ;)

Offline ~~~~shreyapril~~~~

  • SF Master
  • ******
  • Posts: 2606
  • Reputation: 2640
  • Gender: Male
  • "Prototype"
Re: ~~~All Chemistry Doubts Here~~~
« Reply #101 on: November 07, 2009, 11:55:39 am »
i gues the steam reforming method is given in TB!!
Logged
Friendship is like peeing on yourself. Everyone can see it but only you get the warm feeling that it gives :D :P :)

Offline @d!_†oX!©

  • SF Master
  • ******
  • Posts: 1268
  • Reputation: 2105
  • Gender: Male
Re: ~~~All Chemistry Doubts Here~~~
« Reply #102 on: November 07, 2009, 11:57:03 am »
whats TB???
text book??
Logged
AAL IZZ WELL!!! ;)

Offline ~~~~shreyapril~~~~

  • SF Master
  • ******
  • Posts: 2606
  • Reputation: 2640
  • Gender: Male
  • "Prototype"
Re: ~~~All Chemistry Doubts Here~~~
« Reply #103 on: November 07, 2009, 11:58:25 am »
yup!!
pata nahin tha kya??

i was telling it to aadi tnot to you !!! abt TB
Logged
Friendship is like peeing on yourself. Everyone can see it but only you get the warm feeling that it gives :D :P :)

nid404

  • Guest
Re: ~~~All Chemistry Doubts Here~~~
« Reply #104 on: November 07, 2009, 12:23:26 pm »
Quote from: ~~~~shreycool~~~~ on November 07, 2009, 11:58:25 am
yup!!
pata nahin tha kya??

i was telling it to aadi tnot to you !!! abt TB

TB is tuberculosis.....
Logged
Pages: 1 ... 5 6 [7] 8 9 ... 227   Go Up
« previous next »