These are some Chemistry A Level Notes that will certainly aid you in your preparation: Cambridge International A Level Chemistry Revision medical-site.info Co Index/CIE-Revision/A-Level/A-As-Level-Chemistry-Notes medical-site.info · A Level Chemistry Revision medical-site.info Chemistry AS Level Practical medical-site.info Complete A level Chemistry Notes. Cambridge International AS and A Level Chemistry builds on the skills acquired at Cambridge IGCSE (or equivalent) level.
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Cambridge International AS and A Level Chemistry Revision Guide. A. S. /A .. This lists all of the learning outcomes, and you can tick them off or make notes. Dr. C. Boes. AQA, Edexcel OCR A&B Chemistry Revision Notes/Revision Cards These books can also be downloadd as PDF documents from my ebook shop. These notes cover the main areas of this subject. Please check the specific areas you need with your exam board. They are provided “as is” and S-cool do not.
An observational problem in which the candidate will be asked to investigate.
Practical techniques The substance may be an element. The substances to be investigated may contain ions not included in the above list: Candidates should indicate at what stage a change occurs. Answers should include details of colour changes and precipitates formed and the names and chemical tests for any gases evolved equations are not required. The following notes are intended to give schools and candidates an indication of the accuracy that is expected in quantitative exercises and general instructions for qualitative exercises.
C when using a thermometer calibrated in 1 C intervals and to the nearest 0. Candidates should normally record: In qualitative analysis exercises. The attention of Centres is drawn to the Handbook for Centres which contain a section on Science Syllabuses which includes information about arrangements for practical examinations.
Supervisors are reminded of their responsibilities for supplying the Examiners with the information specified in the Instructions.
Where clocks are specified. Details of the requirements for a particular examination are given in the Instructions for Supervisors which are sent to Centres several weeks prior to the examination.
Unless otherwise. The list is not intended to be exhaustive: These Instructions also contain advice about colour-blind candidates.
Failure to supply such information may cause candidates to be unavoidably penalised. I aq nitrate. SO42 aq sulphite. SO32 aq 3 Gas ammonia.
NH3 carbon dioxide. Br aq iodide. Cl aq bromide. CO2 chlorine. O2 sulphur dioxide. NO2 aq sulphate. H2 oxygen.
Cl2 hydrogen. NO3 aq nitrite. Quantity Base quantities mass length time electric current thermodynamic temperature amount of substance Other quantities temperature volume density pressure frequency wavelength speed of electromagnetic waves Planck constant electric potential difference standard electrode potential redox electromotive force molar gas constant half-life atomic mass relative atomic mass isotopic molecular mass relative molecular mass molar mass nucleon number proton number neutron number number of molecules number of molecules per unit volume Avogadro constant Faraday constant enthalpy change of reaction standard enthalpy change of reaction ionisation energy lattice energy bond energy 64 Usual symbols m l t I T n SI unit kg.
The list is not exhaustive. Kw pH kJ mol 1 as appropriate as appropriate as appropriate mol dm 3 as appropriate mol2 dm 6 Kc Ka n. Estimate orders of magnitude. Use tables or calculators to evaluate logarithms for pH calculations. Express small fractions as percentages. Test tabulated pairs of values for direct proportionality by a graphical method or by constancy of ratio. Calculate an arithmetic mean. Select appropriate variables and scales for plotting a graph.
Solve simple algebraic equations. Transform decimal notation to power of ten notation standard form.
Substitute physical quantities into an equation using consistent units so as to calculate one quantity. Make appropriate evaluations of numerical expressions. Determine and interpret the slope and intercept of a linear graph.
Boltzmann distribution curves. Change the subject of an equation Most such equations involve only the simpler operations but may include positive and negative indices and square roots. Check the dimensional consistency of such calculations.
Understand i ii the slope of a tangent to a curve as a measure of the rate of change. A memory function may be useful but is not essential. Calculators If calculators are to be used. State implies a concise answer. In the former instance the term usually implies that the answer should include reference to visual observations associated with the phenomena. Suggest is used in two main contexts. Describe requires candidates to state in words using diagrams where appropriate the main points of the topics.
List requires a number of points. Comment is intended as an open-ended instruction. Only a formal statement or equivalent paraphrase being required. Where a given number of points is specified. It is often used with reference either to particular phenomena or to a particular experiment.
Candidates should appreciate that the meaning of a term must depend in part on its context. Describe and explain may be coupled in a similar way to state and explain. In other contexts.
Explain may imply reasoning or some reference to theory. The glossary has been deliberately kept brief not only with respect to the number of terms included but also to the descriptions of their meanings. The amount of supplementary comment intended should be interpreted in the light of the indicated mark value.
Predict or deduce implies that the candidate is not expected to produce the required answer by recall but by making a logical connection between other pieces of information. Such information may be wholly given in the question or may depend on answers extracted in an earlier part of the question. Outline implies brevity. In diagrams.
Classify requires candidates to group things based on common characteristics. Determine often implies that the quantity concerned cannot be measured directly but is obtained by calculation.
In general. Compare requires candidates to provide both the similarities and differences between things or concepts. Estimate implies a reasoned order of magnitude statement or calculation of the quantity concerned.
Calculate is used when a numerical answer is required. Measure implies that the quantity concerned can be directly obtained from a suitable measuring instrument. Any alternations to previous published information will be communicated to registered centres. The information contained in this document may be subject to alteration in the light of changing circumstances. Flag for inappropriate content. Related titles.
Cambridge International as and a Level Chemistry Syllabus. Jump to Page. Search inside document. Zubayr Moro. Arsalan Ahmed Usmani. X-Saad Arshad-x. Hassam Zulfiqar. Huy Tran. Julia Ball. Rose Hunter. Cheng Han. Mohit Changani. Tasmiah Hossain. Mohamed Akkash. Ahmad Hussain. Louis Wang Striker. Akbar Iqbal. Zain Rehan. More From Paida Heart. Paida Heart.
Why do we worship on Sunday instead of Saturday. Popular in Acid Dissociation Constant. Biopharmaceutics Classification System an Industrial Experience. Sam H. Iqbal A Mir. Paper 2 1h 48 marks A variable number of structured questions, all compulsory.
Based on the core syllabus Section 1 to Answered on the question paper. Paper 3 1h 40 marks Forty multiple choice questions based on the core syllabus Sections 1 to Thirty items will be of the direct choice type and ten of the multiple completion type.
All questions will include 4 responses. Paper 4 1h 40 marks Testing the options. Three questions on each option 10 marks each. Candidates to answer a total of four questions, not more than two on any option. Duration 2h 1h 1h 1h 2h Marks 72 48 40 40 50 Paper 5 2h 50 marks The scope of the practical test is indicated in the Practical Chemistry syllabus. The paper will be marked out of 75 and scaled to a mark out of Theory Papers Papers 1, 2 and 3 marks in total Knowledge with understanding approximately 55 marks allocated to recall and 35 marks allocated to understanding.
Handling, applying and evaluating information approximately 70 marks. The portion of marks allocated to Physical, Inorganic chemistry in Papers 1, 2 and 3 will be in the approximately ratio Whilst every effort will be made to produce questions of comparable difficulty and reasonable spread of skills, the differing natures of the various options mean that different skills will be required of candidates according to their choice of options and questions.
Practical Test Paper 5 50 marks Experimental skills and investigations. This paper is designed to test appropriate aspects of objectives C1 to C6.