Question

What practice will not help you make an accurate volume reading on a buret at the beginning of a titration?

Answer 1

Answer:

Taking reading of the volume level of liquid in a buret while it is inclined leading to parallax error

Explanation:

Practices that will not help you make accurate volume reading on a buret are

1. Leaving air bubbles buret tip or in the stopcock

2. Error due to parallax: Taking volume reading while looking at the scale of an inclined buret. Looking down the buret gives it an appearance of a higher reading than actual reading while up towards the meniscus will make it look lower than the actual value

3. Pouring in the liquid too rapidly into the buret forming droplets on the inner walls of the buret which can alter the volume reading of the buret when the drops settle into the remaining liquid in the buret