Research and write up a method to test and identify the functional groups in three unknown organic compounds. You will need to bring your practical method to your Core Practical 7 Laboratory session so that you can follow it.
1. Carry out research to develop methods.
2. Report results in an organised table with headings
Research and write up a method to test and identify three unknown inorganic compounds. You will need to bring your practical method to your Core Practical 7 Laboratory session so that you can follow it.
1. Carry out research to develop methods.
2. Report results in an organised table with headings
Look over previous practicals for methods
Look at Lab 7 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
● dropping bottle of A ● dropping bottle of B ● dropping bottle of C ● solid X ● solid Y ● solid Z ● bromine water ● spatula ● distilled water ● Fehling’s solution ● barium chloride solution ● acidified potassium dichromate ● apparatus to conduct a flame test ● silver nitrate solution ● ethanol ● chlorine water ● dilute ammonia solution ● test tubes ● 250 ml beaker ● nitric acid ● dilute sodium hydroxide ● kettle
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 write 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 identify any material that is a direct quote as such.
Use research to support methods to identify organic and inorganic unknowns
Uses research to support conclusions drawn
Compiles a bibliography of texts from which material has been sourced in such a way that the reader may retrieve the information easily.
Consult CLEAPSS Hazcards® 84A,45C,44B,19A,98B,95A,78C,47A,87,40A,22B,6,67,91A,10A,15B. Perform a risk assessment using up-to-date information before this practical is carried out