Chemistry · 2000 · May · Paper 2 · SL · Question paper
ChemistryQuestion paper2000SLMay
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This question paper is listed under Chemistry in the 2000 examination archive. Its catalogue level is SL. 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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CHEMISTRY
STANDARD LEVEL
PAPER 2
Tuesday 16 May 2000 (afternoon)
1 hour
M00/420/S(2)
INTERNATIONAL BACCALAUREATE
BACCALAURÉAT INTERNATIONAL
BACHILLERATO INTERNACIONAL
220-213 12 pages
INSTRUCTIONS TO CANDIDATES
! Write your candidate name and number in the boxes above.
! Do not open this examination paper until instructed to do so.
! Section A: Answer all of Section A in the spaces provided.
! Section B: Answer one question from Section B. You may use the lined pages at the end of
this paper or continue your answers in a continuation answer booklet, and indicate
the number of booklets used in the box below. Write your name and candidate
number on the front cover of the continuation answer booklets, and attach them to
this question paper using the tag provided.
! At the end of the examination, indicate the number of the Section B question answered in the
box below.
Number
Name
TOTAL
/40
TOTAL
/40
TOTAL
/40
NUMBER OF CONTINUATION
BOOKLETS USED .........
/20/20/20SECTION B
QUESTION .........
/20/20/20ALLSECTION A
IBCATEAM LEADEREXAMINERQUESTIONS ANSWERED
SECTION A
Answer all questions from this section.
1. Solutions of acids of the same concentration are prepared. The acids and their equilibrium
constants, , are:Kc
56 1 0 4. × −HF
very largeHCl
40 1 0 10. × −HCN
17 10 5. × −CH COOH3
Kc (at C) mol dm25 3! −Acid
[2](a) Write down the equilibrium expression for HCN.
.........................................................................
.........................................................................
[1](b) Write down these solutions in order of decreasing pH.
.........................................................................
[1]
(c) Write down these solutions in order of increasing concentration of molecules of acid present
in the solution.
.........................................................................
[1]
(d) For the solution of , write down the formulas of all the chemical species present.CH COOH3
.........................................................................
[2](e) Write the name and formula of the conjugate base of HF.
.........................................................................
[2]
(f) State, giving a
File information
Subject
Chemistry
Document type
Question paper
Year
2000
Session
May
Level
SL
Paper
2
Examination zone
Not labelled in the archive
Language
Not labelled in the archive
File size
26 KB
Pages
12
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