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chemistry problem

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NotAbod:
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

Amii:
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  :D

NotAbod:
very helpful
thanks for the fast reply :)

Amii:

--- Quote from: Abod on March 16, 2011, 09:50:55 pm ---very helpful
thanks for the fast reply :)

--- End quote ---
No problem  :D

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