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Chemistry · 2018 · November · Paper 2 · HL · Question paper

ChemistryQuestion paper2018HLNovember

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This question paper is listed under Chemistry in the 2018 examination archive. Its catalogue level is HL. The catalogue session is November. The information below helps you identify the document before opening the complete PDF. Subject, year and session labels come from the archive catalogue; the original cover remains the reference if a label differs. A file is not automatically suitable for your current syllabus simply because its subject name matches.

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24EP01 [Personal identifier removed] Higher level Paper 2 21 pages Wednesday 7 November 2018 (afternoon) 2 hours 15 minutes Instructions to candidates yy Write your session number in the boxes above. yy Do not open this examination paper until instructed to do so. yy Answer all questions. yy Answers must be written within the answer boxes provided. yy A calculator is required for this paper. yy A clean copy of the chemistry data booklet is required for this paper. yy The maximum mark for this examination paper is [95 marks]. © International Baccalaureate Organization 2018 N18/4/CHEMI/ HP2/ENG/TZ0/XX 8818 – 6102 Answer all questions. Answers must be written within the answer boxes provided. 1. 3.26 g of iron powder are added to 80.0 cm3 of 0.200 mol dm−3 copper(II) sulfate solution. The following reaction occurs: Fe (s) + CuSO4 (aq) → FeSO4 (aq) + Cu (s) (a) (i) Determine the limiting reactant showing your working. [2] .......................................................................... .......................................................................... .......................................................................... .......................................................................... .......................................................................... (ii) The mass of copper obtained experimentally was 0.872 g. Calculate the percentage yield of copper. [2] .......................................................................... .......................................................................... .......................................................................... .......................................................................... (b) (i) The reaction was carried out in a calorimeter. The maximum temperature rise of the solution was 7.5 C. Calculate the enthalpy change, ∆H, of the reaction, in kJ, assuming that all the heat released was absorbed by the solution. Use sections 1 and 2 of the data booklet. [2] .......................................................................... ..........................................................................
File information
Subject
Chemistry
Document type
Question paper
Year
2018
Session
November
Level
HL
Paper
2
Examination zone
Not labelled in the archive
Language
Not labelled in the archive
File size
573 KB
Pages
24
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