The burette reading is read correct to the nearest 0.05cm3 from the bottom of the meniscus.
Concordant results should be within 0.20cm3 of each other.The end point of the titration is when the indicator changes from one colour to the next.The equivalence point of the titration is when the correct molar quantities have reacted.For most acid-base titrations the end point and equivalence point are close enough to be considered the same.The concordant values are added and divided by the number of concordant readings to find the mean correct to 0.01cm3. For accurate results:1. A white tile is used to provide a white background to see the colour change more clearly.2. Indicators are weak acids and only 3 drops are added. Adding more indicator would affect the accuracy of the results.3. The space between the tap and tip must be full of solution as the burette has been calibrated to take this into account.4. The tip of the burette is placed inside the neck of the conical flask to avoid splashes.5. A rough titration is done so that the solution can be added rapidly at first then more slowly and then dropwise nearing the end point of the titration to decrease the chance of overshooting.6. Swirl the flask to make sure solutions are mixed thoroughly.7. The end point is reached when the indicator only just changes colour.
Concordant results should be within 0.20cm3 of each other.The end point of the titration is when the indicator changes from one colour to the next.The equivalence point of the titration is when the correct molar quantities have reacted.For most acid-base titrations the end point and equivalence point are close enough to be considered the same.The concordant values are added and divided by the number of concordant readings to find the mean correct to 0.01cm3. For accurate results:1. A white tile is used to provide a white background to see the colour change more clearly.2. Indicators are weak acids and only 3 drops are added. Adding more indicator would affect the accuracy of the results.3. The space between the tap and tip must be full of solution as the burette has been calibrated to take this into account.4. The tip of the burette is placed inside the neck of the conical flask to avoid splashes.5. A rough titration is done so that the solution can be added rapidly at first then more slowly and then dropwise nearing the end point of the titration to decrease the chance of overshooting.6. Swirl the flask to make sure solutions are mixed thoroughly.7. The end point is reached when the indicator only just changes colour.