Method for measuring liquid density

Actually, there are many ways. The one upstairs is right. You can use a densimeter. It is something like chopsticks. You can read it directly in the liquid. The disadvantage is that it is impossible to measure dense liquids, such as mercury.

You can also weigh the mass of a certain volume of liquid, weigh the mass and measure the volume, and the ratio of the two is the density.

Simple method: measure the mass of an empty measuring cylinder with a balance-fill it with liquid-read the volume-re-measure the mass-divide the mass difference before and after by the read volume.

Other methods are analyzed separately. ...