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Chemistry · 2001 · May · Paper 2 · HL · Markscheme

ChemistryMarkscheme2001HLMay

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Resource overview

This markscheme is listed under Chemistry in the 2001 examination archive. Its catalogue level is HL. The catalogue session is May. 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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MARKSCHEME May 2001 CHEMISTRY Higher Level Paper 2 14 pages M01/420/H(2)M INTERNATIONAL BACCALAUREATE BACCALAURÉAT INTERNATIONAL BACHILLERATO INTERNACIONAL SECTION A [1]1. (a) (i) Tl [1](ii) (accept Mn) 2 Mn + [1](iii) Any two of N, P, As, Sb, Bi [3 max] (b) Lines (may be shown on diagram) [1] Convergence at high frequency / energy / short wavelength (may be shown on a diagram) [1] Electron transfer between energy levels / each transition / line depends on energy differences / [1] Eh υ∆= [2 max] (c) remaining electrons in one shell / has one less shell or converse [1]Li + effective nuclear charge ( ) greater than that of the atom [1]Li + [2 max] (d) Any two of the following, [1] each ! Do not form bonds ! Full outer shells ! No attraction for electrons ! Stable / inert / do not react 2. (a) [1]20.6670.66660.3332No. of moles [1]Divide by valuesrA HNClPt [3 max]Empirical formula [1]226PtCl N H [1] (b) Accept any diagram that shows two Cl atoms attached to Pt and two groups3NH attached to Pt. (Allow ECF from (a)). [4 max] (c) Moles of [1]3AgNO 0.0162 0.102 0.00165=× = Moles of [1]NaCl 0.0148 0.125 0.00185=× = Therefore limiting reactant is moles AgCl produced [1]3AgNO / 0.00165 Mass of AgCl produced (accept values in range0.00165 143.32 0.236g=× = 0.236 - 0.237 g) [1] If the wrong limiting reagent is used (NaCl), 0.265 g scores [3]. (N.B. Error carried forward; other routes are possible for the deduction that is limiting / moles )3AgNO AgCl = moles 3AgNO – 6 – M01/420/H(2)M
File information
Subject
Chemistry
Document type
Markscheme
Year
2001
Session
May
Level
HL
Paper
2
Examination zone
Not labelled in the archive
Language
Not labelled in the archive
File size
144 KB
Pages
10
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