Question

question 2 of 12
points possible: 1.00
how can you improve your ability to see the indicator color change at the endpoint of a titration?
select one:
regularly remove the analyte flask from under the buret to hold it up to the light.
place a piece of white paper under the analyte flask throughout the titration.
add extra indicator at the calculated endpoint of the titration.
add a large amount of indicator at the beginning of the titration.

Explanation:

Placing a piece of white paper under the analyte flask throughout the titration provides a contrasting background, making the color - change of the indicator more visible. Removing the flask from under the buret can cause errors in volume measurement. Adding extra indicator at the calculated endpoint or a large amount at the beginning can affect the titration results due to indicator's acidic or basic nature.

Answer:

B. Place a piece of white paper under the analyte flask throughout the titration.