Question

In: Chemistry

Review the list of common titration errors. Determine whether each error would cause the calculation for...

Review the list of common titration errors. Determine whether each error would cause the calculation for moles of analyte to be too high, too low, or have no effect.

adding titrant past the color change of the analyte solution

recording the molarity of titrant as 0.1 M rather than its actual value of 0.01 M

spilling some analyte out of the flask during the titration

starting the titration with air bubbles in the buret

filling the buret above the 0.0 mL volume mark

Expert Solution

1) Adding titrant past the color change of the analyte solution

Adding titrant past the color change will introduce more reactant to the flask than actually required. This will cause the calculated number of moles too high

2) Recording the molarity of titrant as 0.1 M rather than its actual value of 0.01M

This will cause the calculated number of moles too high

3) Spilling some analyte out of the flask during the titration.

This will cause the calculated number of moles too low

4) Starting the titration with air bubbles in the burette

This will introduce more volume of titrant to the flask and cause the calculated number of moles too high

5) Filling the burette above the 0.0 mL mark

Filling the burette above the 0.0 mL mark introduce more volume of titrant to the flask and cause the calculated moles of the analyte to be too low.

queen_honey_blossom answered 2 years ago

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