O Level Chemistry: Mole Concepts / Chemical Calculations
05 May
Posted by: sean in: Chemistry Notes & Tips
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A very interesting questions sent in by a local students on Mole Calculations / Mole Concepts / Chemical Calculations:
Try this out and leave your suggested answers in the “Comments” section below this post.
Questions:
A sample of sea-water contains 0.1 g/dm^3 of bromide ions.(i) What volume of this sea-water produces one mole of bromine molecules?
(ii) What volume of chlorine gas is required to produce 8g of bromine from this sea water?
Suggested Answers:
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2 Responses
Kay
08|Sep|2009 1I really had difficulty to answer this, …! I m self-teaching AS chemistry .. its tough, and things like this, are pure hard.;. ! but thanks for posting this!
– from Morocco
Reply
Kay
13|Sep|2009 2hello i was wondering from where did 80 come from ? thats not avogadro’s number… (6X10^23) then what is it?
Please reply
Thnx alot!
Reply
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