Density Lab

The problem was that we need to float a vial in the middle of salty water and hot water. The hypothesis was that we needed to get the vial in between more than 1 g/cm and less than 1g/cm. T materials:

 a vial

 salt

 beaker

 tank filled with cold salt water and hot water 

 a balance beam

Procedure:

fill the vial with salt and water

find the volume of the vail by fill up a beaker to 80, putting in the vial and subtracting the difference between the two measurements

weigh the vial on a balance beam

find the density = mass/volume

adjust so that the density is close to 1

Data

30.5/26 = 1.15

20.86/25 = .83

20.116/23=.90

30.3/23=1.31

20.93/23=.91

We never did make the vial float in the middle