A student rinses a buret with a titrant and allows some of it to flow through the tip of the buret to ensure the tip is rinsed. They then pour out all of the rinsing titrant from the buret and tip and discard it appropriately. Next, they ensure the stopcock is closed and pour fresh titrant into the buret up to the 0.00mL mark. They record the initial volume as 0.00mL and begin the titration. What mistake did they make? No mistake was made. The student should record 50.00mL as the starting volume even though the top of the buret is marked at 0.00mL. The student should have released some titrant into the tip of the buret before recording the initial volume. The student should not have rinsed the buret since this will result in a greater volume of solution used and mess up the calculations. 4

A student rinses a buret with a titrant and allows some of it to flow through the tip of the buret to ensure the tip is rinsed. They then pour out all of the rinsing titrant from the buret and tip and discard it appropriately. Next, they ensure the stopcock is closed and pour fresh titrant into the buret up to the 0.00mL mark. They record the initial volume as 0.00mL and begin the titration. What mistake did they make? No mistake was made. The student should record 50.00mL as the starting volume even though the top of the buret is marked at 0.00mL. The student should have released some titrant into the tip of the buret before recording the initial volume. The student should not have rinsed the buret since this will result in a greater volume of solution used and mess up the calculations. 4

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter4: Least-squares And Calibration Methods

Section: Chapter Questions

Problem 1P

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