When filling a burette for a titration, adjust the burette so that the opening is near or below eye level, preferably over a sink. Then, use a funnel to add the titrant into the burette. The titrant should be filled Choose...
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Step 1: Adjust the burette so that the opening is near or below eye level, preferably over a sink. Show more…
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The end point of a titration is defined as the volume of titrant added, while the equivalence point is the volume required for complete reaction with the analyte. By choosing the proper _____________, scientists can minimize the difference in these two numbers, allowing more accurate measurements in the lab.
To minimize the effect of buret reading errors, titrations performed using a 50 -mL buret are most accurate when titrant volumes are in the range of 35 to $45 \mathrm{~mL}$. Suggest a range of sample weights that would yield a $35-$ to $45-\mathrm{mL}$ titration range for the standardization of solutions of the following approximate concentrations. (a) $0.0533 M$ $\mathrm{NaOH}$ using potassium hydrogen phthalate (KHP), a monoprotic acid. (b) $0.0895 M \mathrm{KOH}$ using primary standard benzoic acid $\left(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{COOH}\right)$, a monoprotic acid.
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