Appendices and Requirements

APPENDIX 1

Only the systematic names for organic compounds will be used on examination papers, except where the traditional name continues to enjoy widespread use, particularly in industrial and everyday life. In these cases, the traditional name will also be given in parentheses immediately after the systematic name. Knowledge of these traditional names is not examinable. A representative list of such compounds follows:

The systematic names for inorganic compounds are not required.

APPENDIX 2

Only the systematic names for organic compounds will be used on examination papers, except where the traditional name continues to enjoy widespread use, particularly in industrial and everyday life. In these cases, the traditional name will also be given in parentheses immediately after the systematic name. Knowledge of these traditional names is not examinable. A representative list of such compounds follows:

The systematic names for H4edta and methyl tert-butyl ether are not required.
The systematic names of inorganic compounds are not required, except for compounds of transition metals (cf. section 2.6).

Mathematical Requirements for Ordinary and Higher levels

1. Use of calculators

Students will be expected to have an electronic calculator conforming to the examination regulations for the duration of the course and when answering the examination paper. It is recommended that students have available the following keys:
Ordinary level: +, -, x, ÷, 1/x , log10 x, 10x, EE or EXP, memory.
Higher level: as above, and x2, x, x y.

In carrying out calculations, students should be advised to show clearly all expressions to be evaluated using a calculator. The number of significant figures given in the answer to a numerical problem should match the number of significant figures given in the question.

2. Mathematical requirements

The chemistry syllabus does not require Higher level mathematics. There is no requirement for the use of calculus techniques.

Arithmetic

Students should be able to

• understand the concept of significant figures
• recognise and use significant figures as appropriate
• recognise and use expressions in decimal and standard form (scientific) notation
• recognise and use prefixes indicating multiplication by 10-3, 103
• find weighted means
• use an electronic calculator for addition, subtraction, multiplication and division, for reciprocals, squares, square roots, logarithms and their inverses
• make approximate evaluations of numerical expressions and use such approximations to check calculator calculations.

Algebra

Students should be able to

• change the subject of an equation
• solve simple algebraic equations
• substitute for physical quantities in physical equations using consistent units
• formulate simple algebraic equations as mathematical models of physical situations
• comprehend and use the symbols >, <, ? ,=, x, ?x.

Graphs

Students should be able to

• translate information between numerical, algebraic, verbal and graphic forms
• select appropriate variables and scales for graph plotting
• determine the slope of a linear graph and allocate appropriate physical units to it
• choose by inspection a straight line that will serve as the best straight line through a set of data represented graphically
• choose by inspection a curve that will serve as the best curve through a set of data presented graphically
• determine the slope of a curve at a point and allocate appropriate physical units to it.