Chemistry Mrs Brittain, Mrs Siddique & Miss Hargreaves

AS Level Chemistry OCR – H032(AS) AS Level: Two 1 ½ hour examinations, modules 1-4 Paper 1 - Breadth in chemistry (01)* 70 marks - 1 hour 30 minutes written paper (50%), multiple choice, short-medium length response answers. Tests recall and application. Paper 2 - Depth in chemistry (02)* 70 marks 1 hour 30 minutes written paper (50%), short-longer answer questions. Tests application, analysis & practical skill. *Both components include synoptic assessment.

A Level Chemistry OCR – H432 (A2) A Level: Three examinations, 2 x 2 ¼ hour, 1 x 1 ½ hour Paper 1 – Modules 1, 2, 3 & 5 (01) 100 marks, 2 hour 15 minutes written paper (37%), multiple choice, short and longer response answers. Paper 2 – Modules 1, 2, 4 & 6 (02) 100 marks, 2 hour 15 minutes written paper (37%), multiple choice, short and longer response answers. Paper 3 - Synoptic paper (03) 70 marks, 1 hour 20 minutes (26%), short and longer response answers.

Isomers A molecular formula shows how many atoms of each element are in a compound, e.g. C 5 H 10. However, there are nine different ways of putting together 5 carbon atoms and 10 hydrogen atoms. These are known as structural isomers. Collect 5 black molymods (with 4 holes) and 10 white ones (1 hole) and a selection of bonds including 2 ‘bendy’ ones. Put them together so all the holes are filled. (hint some have C=C and some have a ring) Can you find all of the isomers? Draw each one you find as a displayed formula e.g. C 2 H 4

Practical Work – Making Esters We will make some compounds called esters which you may have met at GCSE, but will cover in more detail in the 2 nd year of the A level. They are used to add fragrance and flavour to many food and cosmetic products. You will be using chemicals that can be very hazardous, so please follow safety instruction carefully. You will need to wear gloves and goggles and tie back or tuck in long hair/scarves.

Pre-Course Reading and summer work If you have done triple science you will need to keep your revision guides and GCSE books and re-familiarise yourself with certain areas over the summer. For those who have done double award, there are many areas that you will have covered plus some that are in the triple only which means that you will need to familiarise yourself with those as well. If you have done double award or if you sat your GCSE Chemistry in y9 or y10, please see me at the end of the session.

Pre-Course Reading and summer work Topics that come up as AS that you have already started studying: Atomic structure Writing Formulae & Equations Oil & Products from Oil (inc. Polymers) Bonding Making Salts Energy Electrolysis Calculations including formula mass, empirical formulae, yields, moles, concentration Periodic Table Equilibrium Rates

Diagnostic assignment The Diagnostic assignment is a booklet to recap some of the areas that come up at AS that you should be familiar with from GCSE with one or two pieces of extension work. This is due the first week back in September. It includes: Bonding Calculations Practical Skills & Understanding