In: Chemistry
After the first trial, in order to maximize the titration
precision, the sample size of pure
KHC8H4O4 or unknown for a trial
should be adjusted so 20-23 mL of NaOH are delivered in both part B
and C. This can be done as noted on page 82 in your lab
manual.
If 8.74 mL NaOH was used in the titration of a 0.435 g sample use
ratios to determine mass of sample needed to use 21.50 mL of NaOH
in the next trial.