Revolution Now!
Welcome,
Guest
. Please
login
or
register
.
Have you missed your
activation email
?
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length.
News:
New servers, hooraaaay! More bandwidth, more power.
Home
Help
Calendar
Login
Register
IGCSE/GCSE/O & A Level/IB/University Student Forum
»
Qualification
»
IGCSE/ GCSE
»
Subject Doubts
»
Sciences
»
chemistry problem
« previous
next »
Print
Pages: [
1
]
Go Down
Author
Topic: chemistry problem (Read 1271 times)
NotAbod
Wikipedia Contributor
Global Moderator
SF Farseer
Posts: 3929
Reputation: 65535
Gender:
chemistry problem
«
on:
March 16, 2011, 08:29:40 pm »
hello
what is suck back?
is there any effects to the apparatus if it occurs?
a similar question is in 2010 winter paper 6, question 1
help please my chemistry mock exam is tommorow
time is 11:30 pm try to help pl0x
Logged
Amii
SF Farseer
Posts: 3849
Reputation: 65535
Gender:
Re: chemistry problem
«
Reply #1 on:
March 16, 2011, 09:44:31 pm »
Suck back would basically mean the back flow of a substance.
In that experiment gas is collected over water. If heating is stopped before the delivery tube is removed from the water -the water will rise up the delivery tube as the pressure in the reaction tube decreases(since it cools).The water can flow back/can be sucked back into the hot boiling tube causing it to crack - an explosion might occur.
Hope this helps
Take care and good luck
«
Last Edit: March 16, 2011, 09:48:31 pm by Amii
»
Logged
By my sweeett nephew
NotAbod
Wikipedia Contributor
Global Moderator
SF Farseer
Posts: 3929
Reputation: 65535
Gender:
Re: chemistry problem
«
Reply #2 on:
March 16, 2011, 09:50:55 pm »
very helpful
thanks for the fast reply
Logged
Amii
SF Farseer
Posts: 3849
Reputation: 65535
Gender:
Re: chemistry problem
«
Reply #3 on:
March 16, 2011, 09:52:54 pm »
Quote from: Abod on March 16, 2011, 09:50:55 pm
very helpful
thanks for the fast reply
No problem
Logged
By my sweeett nephew
Print
Pages: [
1
]
Go Up
« previous
next »
IGCSE/GCSE/O & A Level/IB/University Student Forum
»
Qualification
»
IGCSE/ GCSE
»
Subject Doubts
»
Sciences
»
chemistry problem