Determining the Percentage of CaCO3 in an Egg Shell
Good Shepherd International School
International Baccalaureate Diploma Programme
Chemistry HL Lab Report
Determining the
Candidate Name:
Kamalia, Ujjwal
Candidate Number:
001350-035
of
in an Egg Shell
Candidate Name: Kamalia, Ujjwal
Candidate Number:
001350-035
Table of Contents
1. Teacher’s Instruction………………………………………………………………….......2
2. Research Question………………………………………………………………………...2
3. Variables…………………………………………………………………………………..2
4. Principle Used……………………………………………………………………………..2
5. Apparatus Required……………………………………………………………………….3
6. Reagents/ Chemicals Required……………………………………………………………3
7. Procedure………………………………………………………………………………….4
8. Precautions…………………………………………………………………………….......6
9. Data Collection……………………………………………………………………………7
10. Data Processing……………………………………………………………………………8
11. Conclusion and Evaluation………………………………………………………………12
Chemistry HL Lab Report
Determination of % of CaCO3 in eggshell
1
Candidate Name: Kamalia, Ujjwal
Candidate Number:
001350-035
Teacher’s Instruction:
Carry out an experiment to determine the %of CaCO3 in egg shell.
Research Question:
What percentage by mass of an egg shell is Calcium Carbonate
?
Variables:
1.
2.
3.
Principle used:
The principle of back titration is used to determine the percentage by mass of an egg shell. Excess of
in
is added to a known mass of powdered egg shell. The solution
formed is diluted and titration is conducted on small aliquots of this solution using standard . Rather than finding the amount of
shell, the amount of
that reacted with the
of the egg
unreacted is found out. Hence this process is termed as the back
titration technique.
Chemistry HL Lab Report
Determination of % of CaCO3 in eggshell
2
Candidate Name: Kamalia, Ujjwal
Candidate Number:
001350-035
Apparatus required:
Sl. No
Apparatus
Quantity
1
Digital Balance
1
2
20 cm3 pipette
1
3
50 cm3 burette
International Baccalaureate Diploma Programme
Chemistry HL Lab Report
Determining the
Candidate Name:
Kamalia, Ujjwal
Candidate Number:
001350-035
of
in an Egg Shell
Candidate Name: Kamalia, Ujjwal
Candidate Number:
001350-035
Table of Contents
1. Teacher’s Instruction………………………………………………………………….......2
2. Research Question………………………………………………………………………...2
3. Variables…………………………………………………………………………………..2
4. Principle Used……………………………………………………………………………..2
5. Apparatus Required……………………………………………………………………….3
6. Reagents/ Chemicals Required……………………………………………………………3
7. Procedure………………………………………………………………………………….4
8. Precautions…………………………………………………………………………….......6
9. Data Collection……………………………………………………………………………7
10. Data Processing……………………………………………………………………………8
11. Conclusion and Evaluation………………………………………………………………12
Chemistry HL Lab Report
Determination of % of CaCO3 in eggshell
1
Candidate Name: Kamalia, Ujjwal
Candidate Number:
001350-035
Teacher’s Instruction:
Carry out an experiment to determine the %of CaCO3 in egg shell.
Research Question:
What percentage by mass of an egg shell is Calcium Carbonate
?
Variables:
1.
2.
3.
Principle used:
The principle of back titration is used to determine the percentage by mass of an egg shell. Excess of
in
is added to a known mass of powdered egg shell. The solution
formed is diluted and titration is conducted on small aliquots of this solution using standard . Rather than finding the amount of
shell, the amount of
that reacted with the
of the egg
unreacted is found out. Hence this process is termed as the back
titration technique.
Chemistry HL Lab Report
Determination of % of CaCO3 in eggshell
2
Candidate Name: Kamalia, Ujjwal
Candidate Number:
001350-035
Apparatus required:
Sl. No
Apparatus
Quantity
1
Digital Balance
1
2
20 cm3 pipette
1
3
50 cm3 burette