Question

explain the procedure of finding the density of an unknown liquid using a relative density bottle ​

Answer 1

Answer:

First determine the weight of the density bottle(A1) when it's empty.

Then fill it with the liquid you want to determine the density.

Then determine the weight of the bottle with the liquid(A2).

Then the weight of the liquid is equal to (A2 - A1)

You already know the volume of the bottle.

Apply them to density = weight/volume

Make sure to mention the temperature you measured it because density varies from one temperature to another.

Accuracy of determining density or relative density is determined by the combined accuracy of measuring the volume and weight of a given quantity of the substance. While measuring relative density of liquids, two common method of measuring the volume are a measuring cylinder and a density bottle.Among these two method the density bottle gives more accurate measurement of the volume, resulting in more accurate determination of density or relative density.

Volume is measured using a measuring cylinder by pouring a given quantity of the liquid in the cylinder and reading out the quantity against the graduations provided in the cylinder for the purpose. In this method errors can occur due to the limitation of the human eye to differentiate between minor variations in the level of the liquid in the cylinder. Also generally the graduations in the measuring cylinder are not marked too accurately.