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QUESTION 4
The image below shows the volume of \( 0.20 \mathrm{M} \mathrm{NaOH} \) in a buret before and after a titration. Determine the number of \( \mathrm{mL} \) of \( \mathrm{NaOH} \) used. Report your answer as a numeric response only (no units) to the proper degree of certainty. It is understood the units are \( \mathrm{mL} \mathrm{NaOH} \).
\( \square \)
\( \qquad \)
QUESTION 5
This lab used a standardized solution, \( \mathrm{NaOH}_{(\mathrm{aq})} \), in the buret to determine the concentration of acid in a vinegar sample. A standard solution is any ch