[Fish200398]

Given : Suppose the concentration of vinegar is to be diluted precisely to 1/10 with the aid of a
volumetric flask and an apparatus A, pipet or buret, which is wet as it has been washed
with distilled water. Whats the name of apparatus A used and the method of using it.

Key answer : pipet, to use after rinsing several times with the vinegar to be diluted

Can anyone tell me what they do in the question? I dont even understand the question..

Also the key answer : rinsing with the vinegar, whats to be diluted?

[rêves-tu?]

You would use a pipette (used for transferring substance) rather than a buret (used to measure quantity of substance)
You rinse the pipette to make sure any residual substance is vinegar and not water so that the transferred vinegar isn't diluted.

[Fish200398]

Nice simple explanation

[Fish200398]

Why buret cant be used? Buret can measure the vinegar to be diluted 0.1?

[Borek]

Technically you could use a burette, but in this case the pipette is much easier and much more convenient.