The concentration of dilute sulfuric acid can be determined by titration with sodium hydroxide solution of known concentration. Below is a method to carry out this titration practical.
1. 25.00cm3 of dilute sulfuric acid was measured out using a pipette and transferred to a conical flask.
2. A few drops of methyl orange indicator were added to the acid in the conical flask. 3. Sodium hydroxide solution was added to the acid from a burette until the indicator changed colour. 4. The titration was repeated twice more and the accurate result was the average of the three results obtained.
Explain TWO details that could be added to this above practical method to ensure an accurate method is obtained
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