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Step 1/8
Use a pipette to measure 25cm3 of known acid and pour into a conical flask on a white tile
Step 2/8
Fill the burette with the unknown acid and record the intiial reading
Step 3/8
Add 5 drops of methyl orange to the conical flask
Step 4/8
Slowly open the burette tap while swirling the conical flask
Step 5/8
Add acid drop by drop
Step 6/8
Close the burette when thee is a colour change
Step 7/8
Record the final reading of the acid and calculate the change
Step 8/8
Repeat steps 1-7 3 more times and calculate a mean removing anomalies