UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS GCE Advanced Subsidiary aim and GCE Advanced Level match SCHEME for the whitethorn/June 2009 skepticism paper for the way of teachers 9701 CHEMISTRY 9701/31 makeup 31 (Advanced Practical Skills 1), maximal raw cicatrice 40 This phiz scheme is make as an aid to teachers and candidates, to indicate the requirements of the examination. It shows the land on which quizzers were instructed to allow coiffures. It does not indicate the details of the discussions that took place at an Examiners brush before rating began, which would have considered the acceptability of resource answers. plant schemes must be read in club with the question papers and the report on the examination. CIE will not pull in into discussions or correspondence in connection with these mark schemes. CIE is create the mark schemes for the May/June 2009 question papers for or so IGCSE, GCE Advanced Level and Advanced Subsidiary Level s yllabuses and most(prenominal) Ordinary Level syllabuses. Page 2 Mark plan: Teachers version Syllabus Paper GCE A/AS aim May/June 2009 9701 31 © UCLES 2009 supervisory programs brood Calculate, correct to 2 dp, the titer if the Supervisor had diluted 47.25 cm3 of FA 2. This is habituated by the expression x Examiner selected titre dope diluted 47.
25 Candidate scripts Calculate the scaled titre for 47.25 cm3 of FA 2. render the value against the titration table and calculate the difference to Supervisor. research Sections indicative mood material Mark 1 (a) PDO Layout PDO enter MMO Collection MMO Decisions MMO Quality (i) Tabulates ! sign and final buret readings and playscript added in each of the tables. Do not award this mark if any final and initial burette readings are invert or 50 is used as the initial burette reading. (ii) Both burette readings in the dilution table and final and initial burette readings for all hi-fi titres in the titration table enter to the nearest...If you want to get a intact essay, order it on our website: OrderCustomPaper.com
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