What is a density bottle? How is it used to find the density of liquid?

Hint:Density bottles are mostly used to calculate the density of medium viscosity liquids. They aren't volumetric instruments, but they are calibrated 'to contain,' much as volumetric flasks are. Bottle with a stopper for density, handling, Calculate the dry and empty density bottle weights.

Complete answer:
A density bottle is a small glass bottle with a stopper on the neck. A fixed amount of liquid may be stored in the bottle. The density bottle is usually available in two sizes: $25\,ml$ and $50\,ml$. There is a small hole in the glass stopper. When the bottle has been filled with liquid and a stopper has been placed in it. The excess liquid rises and drains through the hole. As a result, each time the bottle is full, it will contain the same amount of liquid. It's used to figure out how dense a liquid is.

To find the density of liquid we have to perform the following steps:
-Determine the weight of the empty density bottle \[\left( {A1} \right)\] first.
-Then fill it with the liquid whose density you want to assess.
-Then figure out how much the bottle with the liquid weighs \[\left( {A2} \right).\]
-The liquid's weight is then equal to \[\left( {A2{\text{ }} - {\text{ }}A1} \right)\]
-The bottle's volume is already known to you.
Use them to calculate: \[Density(\rho )\] = \[Mass{\text{ }}\left( m \right)/Volume{\text{ }}\left( V \right)\]

Note:All component parts of calibrated density bottles have a unique identification number. Just put pieces together that have the same number .And Since density varies depending on temperature, make sure to include the temperature you measured it at.