Principle

In the determination of the density of solids in Experiment ME 1.5, the density was determined as the quotient of mass and volume from a weighing to determine the mass and measurement of volume by different methods. As a prerequisite for this experiment, it was assumed that the mass and volume of water are numerically identical, i.e. that the quotient of both - the density - has a value of 1 g∕cm³.

This should now be confirmed experimentally by the same method: weighing a quantity of a material and measuring its volume.

1. First the students are to determine the density of water from a volume measurement in a graduated cylinder, a weight determination and then a calculation.
2. The students should then determine the density of a table salt solution (approx. 10%) which they made themselves by the same method.

Benefits

• Real stand material for an esecially stable and safe setup
• Student-suitable experiment descriptions with reports available