18 PO2(b) P6 Completion of learner-led colorimetric analysis Tutor observation of Practical skills and Demonstrate Follow a standard procedure for practical. practical techniques health and safety applied colorimetric analysis using solution Risk assessment / request form valid from previous experimental dilutions by: session. observation of risk Recording data and techniques recording all data and measurements Tutor to introduce the use of different filters and assessments / request carrying out chemistry: producing a calibration curve wavelengths. form calculations and colorimetric determining the unknown concentration equations analysis Learner-led practical work for chosen analysis. Draft report M6 Follow given procedures to obtain correct data. Explain the choice of Correct results filter/wavelength, describing any Record accurate results and carry out calculations. inconsistencies in the data recorded and making reference to the Beer-Lambert Law Using calibration curve produced for the reaction, learner to determine the unknown concentration. P10 Write up the report in the correct format (see In using experimental techniques: week 15) (P6). safely use a range of practical equipment PO4 and materials Were there any anomalous results with reference Understand identify hazards to the Beer-Lambert Law? safety procedure produce risk assessments for one applied What filter / wavelength did you choose and why? and risk experimental technique from of (M6) each assessment when biology, chemistry and physics undertaking Stretch and challenge - procedure followed with scientific no tutor help results reproducible / accurate, practical work correct units, identification of primary standards and reference to Beer-Lambert Law. Specification Week Key learning objectives Learning activities and resources Plenary Skills reference
18 PO2(b) Demonstrate applied experimental techniques chemistry: colorimetric analysis PO4 Understand safety procedure and risk assessment when undertaking scientific practical work P6 Follow a standard procedure for colorimetric analysis using solution dilutions by: recording all data and measurements producing a calibration curve determining the unknown concentration M6 Explain the choice of filter/wavelength, describing any inconsistencies in the data recorded and making reference to the Beer-Lambert Law P10 In using experimental techniques: safely use a range of practical equipment and materials identify hazards produce risk assessments for one applied experimental technique from each of biology, chemistry and physics Completion of learner-led colorimetric analysis practical. Risk assessment / request form valid from previous session. Tutor to introduce the use of different filters and wavelengths. Learner-led practical work for chosen analysis. Follow given procedures to obtain correct data. Record accurate results and carry out calculations. Using calibration curve produced for the reaction, learner to determine the unknown concentration. Write up the report in the correct format (see week 15) (P6). Were there any anomalous results with reference to the Beer-Lambert Law? What filter / wavelength did you choose and why? (M6) Stretch and challenge - procedure followed with no tutor help results reproducible / accurate, correct units, identification of primary standards and reference to Beer-Lambert Law. Tutor observation of practical techniques observation of risk assessments / request form Draft report Correct results Practical skills and health and safety Recording data and carrying out calculations and equations Week Specification reference Key learning objectives Learning activities and resources Plenary Skills
AQA-1775-SOW-AET.DOCX