Qualification > Reference Material
Chemistry P6 18/5/010
guMnam:
--- Quote from: mdwael on May 17, 2010, 10:48:17 am ---Can someone give me a link to the Mark scheme of chemistry paper 6 summer 2000? I dont seem to find it at xtremepapers..
--- End quote ---
http://www.freeexampapers.us/IGCSE/Chemistry/CIE/1993-2003/chemistry1993-2000answers.pdf
ismailb_1993:
I have a question. In M/J 99 paper 6 chem question 3c.) wouldnt the sketch plateu at a lower level than the initial line because the concentration is greater?
Ghost Of Highbury:
--- Quote from: ismailb_1993 on May 17, 2010, 12:15:19 pm ---I have a question. In M/J 99 paper 6 chem question 3c.) wouldnt the sketch plateu at a lower level than the initial line because the concentration is greater?
--- End quote ---
It is lower because the y-axis reads Mass. More concentration, more particles of marble chips will react *faster* with the HCl and thus the mass at a specific time will decrease. Thus, the curve will be lower.
6394:
"extrapolation shown" wat dus this meanits ddere in ms
< 2009 m/j ques 4-e)1 >
Ghost Of Highbury:
They want u to show how u used the graph to get the value. Show the creation of a new point on the graph.
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