Student Unit Guides are perfect for revision. Each guide is written by an examiner and explains the unit requirements. This guide offers advice on preparing for the OCR(A) Units F323 and F326 Practical Skills in Chemistry assessments. The Introduction includes advice on how to use the guide. The Practical Tasks section describes the types of tasks that you will be assessed on. Qualitative, quantitative and evaluative tasks are discussed. The knowledge and skills required are explained. Exemplar tasks are given together with sample candidate responses. All responses are accompanied by commentaries that highlight the strengths and weaknesses of the response, giving students an insight into the mind of the examiner.