CONCENTRATE ON KEEPING UP YOUR
STANDARD
UNIT 2 ASSIGNMENT A
PRATICAL SCIENTIFIC PROCEDURES AND TECHNIQUES
,Table of Contents
Calibration.............................................................................................................................................3
Introduction.......................................................................................................................................3
Hypothesis.........................................................................................................................................3
Risk assessment & safety...................................................................................................................3
Equipment list....................................................................................................................................3
calibration of the pipette...............................................................................................................3
calibration of the balance..............................................................................................................3
Method..............................................................................................................................................3
calibration of the pipette...............................................................................................................3
calibration of the balance..............................................................................................................4
Results...............................................................................................................................................4
PERCENTAGE OF ERROR.................................................................................................................4
Conclusion.........................................................................................................................................5
Evaluation..........................................................................................................................................5
Bibliography.......................................................................................................................................6
Titration Na2CO3 and HCl......................................................................................................................7
Introduction.......................................................................................................................................7
Hypothesis.........................................................................................................................................7
Risk assessment & safety...................................................................................................................7
Part 1: preparation of a standard sodium carbonate.........................................................................7
Equipment list................................................................................................................................7
Method..........................................................................................................................................7
Results...........................................................................................................................................8
part 2: titration of sodium carbonate and hydrochloric acid using the methyl orange indicator......8
Equipment list................................................................................................................................8
Method..........................................................................................................................................8
Result.............................................................................................................................................8
Conclusion.........................................................................................................................................9
Evaluation..........................................................................................................................................9
Bibliography.....................................................................................................................................10
Titration HCl and NaOH.......................................................................................................................10
Introduction.....................................................................................................................................10
Hypothesis.......................................................................................................................................10
Risk assessment & safety.................................................................................................................10
1
, Equipment list..................................................................................................................................10
Method............................................................................................................................................11
Results.............................................................................................................................................11
Conclusion.......................................................................................................................................12
Evaluation........................................................................................................................................12
Titration HCl and NaOH with pH meter...............................................................................................13
Introduction.....................................................................................................................................13
Hypothesis.......................................................................................................................................13
Risk assessment & safety.................................................................................................................13
Equipment list..................................................................................................................................14
Method............................................................................................................................................14
Results.............................................................................................................................................14
Conclusion.......................................................................................................................................16
Evaluation........................................................................................................................................16
Bibliography.....................................................................................................................................17
Overall evaluation................................................................................................................................17
2
STANDARD
UNIT 2 ASSIGNMENT A
PRATICAL SCIENTIFIC PROCEDURES AND TECHNIQUES
,Table of Contents
Calibration.............................................................................................................................................3
Introduction.......................................................................................................................................3
Hypothesis.........................................................................................................................................3
Risk assessment & safety...................................................................................................................3
Equipment list....................................................................................................................................3
calibration of the pipette...............................................................................................................3
calibration of the balance..............................................................................................................3
Method..............................................................................................................................................3
calibration of the pipette...............................................................................................................3
calibration of the balance..............................................................................................................4
Results...............................................................................................................................................4
PERCENTAGE OF ERROR.................................................................................................................4
Conclusion.........................................................................................................................................5
Evaluation..........................................................................................................................................5
Bibliography.......................................................................................................................................6
Titration Na2CO3 and HCl......................................................................................................................7
Introduction.......................................................................................................................................7
Hypothesis.........................................................................................................................................7
Risk assessment & safety...................................................................................................................7
Part 1: preparation of a standard sodium carbonate.........................................................................7
Equipment list................................................................................................................................7
Method..........................................................................................................................................7
Results...........................................................................................................................................8
part 2: titration of sodium carbonate and hydrochloric acid using the methyl orange indicator......8
Equipment list................................................................................................................................8
Method..........................................................................................................................................8
Result.............................................................................................................................................8
Conclusion.........................................................................................................................................9
Evaluation..........................................................................................................................................9
Bibliography.....................................................................................................................................10
Titration HCl and NaOH.......................................................................................................................10
Introduction.....................................................................................................................................10
Hypothesis.......................................................................................................................................10
Risk assessment & safety.................................................................................................................10
1
, Equipment list..................................................................................................................................10
Method............................................................................................................................................11
Results.............................................................................................................................................11
Conclusion.......................................................................................................................................12
Evaluation........................................................................................................................................12
Titration HCl and NaOH with pH meter...............................................................................................13
Introduction.....................................................................................................................................13
Hypothesis.......................................................................................................................................13
Risk assessment & safety.................................................................................................................13
Equipment list..................................................................................................................................14
Method............................................................................................................................................14
Results.............................................................................................................................................14
Conclusion.......................................................................................................................................16
Evaluation........................................................................................................................................16
Bibliography.....................................................................................................................................17
Overall evaluation................................................................................................................................17
2
