Finding the Density of a Liquid (Water)

 

Materials: 20 ml of liquid (larger amounts are easier to work with but not mandatory)

 

Tools: Graduated cylinder (large enough to hold the desired amount of liquid)

Triple beam balance

 

Activity

Amount or result

  1. place empty graduated cylinder on triple beam balance and find the mass of the cylinder alone

 

50 grams

  1. place 20 ml of fluid into graduated cylinder

 

 

  1. place graduated cylinder with fluid in it on balance, find their combined masses

 

70 grams

  1. subtract mass of empty cylinder from the combined mass of the cylinder and fluid to find the mass of the fluid

 

70 grams (combined)

        50 grams (empty)

20 grams mass of liquid

  1. density = mass/ volume

 

 

 

  1. fluid density = mass/ volume

 

20 grams/ 20 ml.

 

Reduced fraction = fluid density of 1gram per milliliter of water or density water = 1 gm/ml.