4. Errors and accuracy
•Stopwatch error?
Mass
•Accuracy of a laboratory balance?
Measuring volumes - liquids and solutions
•Errors using pipettes
•Error in volumetric apparatus
•Burette error
•How to read the meniscus on a burette. When to refill?
•Reading a burette or pipette meniscus, including coloured solutions
•Sources of error in titration of sodium carbonate?
•% Error using a 1 dm3 flask and a 5 cm3 pipette?
•How to calculate % errors when measuring volumes?
•% Error on dilution
Measuring volumes - gases
•Measuring gas volumes?
•RAM of Li by reaction with water: removal of sources of error
•How to collect CO2 accurately?
•What does stp stand for?
Titrations
•Calculation of % error in a titration
Significant figures
•Use of significant figures
•Empirical formula: when to round up or not?
updated: 07 August 2008
