Comments on: O Level Chemistry – Rate of Reaction Mini Series Part 1

By: Fixxa

Fixxa — Sun, 16 Oct 2011 08:48:04 +0000

the answer is ‘A’….i spoxe….cux the volume of carbon dioxide when halved is 43 cm cube……nd wen we look at the x-axis it is 0.95 minutes.

By: Yeon

Yeon — Mon, 07 Mar 2011 14:02:05 +0000

i thought it was B. but then I realized that its A.
since it says half the amount of Carbondioxide, initially, we should know the total amount of CO2 produced. and respectively, it was 90 cm3. half of it would be surely 45cm3.

and when we see the corresponding x graph (time), it is 0.95 min. SO yah.. its A.

i really like this site thank you mister!

By: sean

sean — Wed, 05 May 2010 16:12:03 +0000

Hi Saud,

Check my reply above.

Cheers!

By: Saud

Saud — Sat, 27 Feb 2010 11:02:02 +0000

half the reaction means half the calcium carbonate to react and therefore half of 90 i-e 45 cm cube of CO2 is produced and so the corresponding time………………..

By: sean

sean — Sun, 19 Oct 2008 09:55:33 +0000

Hi Garrick,

You are Spot On! Your approach is correct.

Do continue to share your thoughts and answers with the readers in this chemistry blogsite.