Core Practical 15 Pre Lab

• Look over previous practicals for methods

• Look at Lab 15 for test videos that may help

• Look at Core Practical 7 sheet

• Include volumes of chemicals and test samples

• Include concentrations of chemicals

• Include positive test outcomes

CPAC 2c- Identifies and controls significant quantitative variables where applicable, and plans approaches to take account of variables that cannot readily be controlled.

· Choose appropriate equipment for measuring solutions

· Choose appropriate equipment for maintaining temperatures

· Hold test tubes in rack

· Check temperatures with thermometer

· Use blue Bunsen flame during flame tests

· Clean wire rod between flame tests

· Use clean test tubes and pipettes for each test

· Keep lab bench tidy and organised

· Work methodically

· Label test tubes

CPAC 2d - Selects appropriate equipment and measurement strategies in order to ensure suitably accurate results.

· Carry out extensive research to plan a practical with a series of tests to identify organic unknowns

· Carry out extensive research to plan a practical with a series of tests to identify inorganic unknowns

· Plan accounts for volumes required

· Plan accounts for appropriate equipment to measure volumes required

· Plan accounts for concentrations required

· Plan accounts for chemicals required

· Plan accounts for appropriate equipment to measure chemicals required

· Plan accounts for conditions required such as exact temperatures

· Plan accounts for equipment needed to provide conditions required such as exact temperatures

· Plan describes how dependent variables will be measured accurately

· Plan is carried out as described

CPAC 5a - Uses appropriate software and/or tools to process data, carry out research and report findings.

· Carry out suitable research online and from written sources about chemical tests and writes up suitable methods, expected outcomes positive and negative, and safety information in own words citing relevant information, facts and figures within the text as necessary.

CPAC 5b – Sources of information are cited demonstrating that research has taken place, supporting planning and conclusions

· Clearly identifies any material that is a direct quote as such.

· Citation within text as necessary

· Use research to support their identification of organic and inorganic unknowns

· Compile a bibliography of texts from which material has been sourced in such a way that the reader may retrieve the information easily.

· Carry out research to support planning by writing a risk assessment to prepare for safety before practical

· Reference Hazcards in a bibliography in such a way that the reader may retrieve the information easily.

CPAC 3a - Identifies hazards and assesses risks associated with these hazards, making safety adjustments as necessary, when carrying out experimental techniques and procedures in the lab or field.

· Complete a sufficient risk assessment prior to task

1. Include chemical hazards reactants & products plus physical hazards

2. Take account of volumes used to ensure risk assessment is appropriate

3. Take account of concentrations used to ensure risk assessment is appropriate

4. Make appropriate assessment made of hazards and risks to do with the practical procedure itself

5. Reference hazcards used to plan for safety (CPAC 5b may be awarded if referenced