If a student did not remove all of the bubbles from inside the buret before reading the initial volume and beginning the titrati

Question

3 years ago

6

If a student did not remove all of the bubbles from inside the buret before reading the initial volume and beginning the titrati

on, will this cause the calculated concentration of the hydrochloric acid determined from that trial to be higher or lower than the actual concentration? explain your answer in complete sentences.

Chemistry

1 answer:

matrenka [14] · Answer 1 · 2022-03-08T11:02:03+03:00

Hello!

If there's an air bubble inside the buret, and the bubble escapes the buret during the titration the initial volume lecture (Vi) would be lower (closer to 0) than the actual one, and the recorded consumed volume (ΔV=Vf-Vi) would be higher than the actual one and thus the calculated concentration of the hydrochloric acid would be higher than the real one.

Have a nice day!