describe an experiment to determine the density of a stone in your account clearly state the Apparatus and it's method of use, the measurements taken and the calculations done (4)
Answers
Answer:
GOAL AND OVERVIEW
This lab provides an introduction to the concept and applications of density measurements. The densities of brass and aluminum will be calculated from mass and volume measurements. To illustrate the effects of precision on data, volumes will be determined by three different methods: geometrically (measuring lengths); water displacement; and pycnometry. The composition of a mixed brass-aluminum cylinder and the volume of empty space within a hollow cylinder will also be found.
Objectives and Science Skills
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Use three methods to determine the volumes of solid aluminum and solid brass cylinders and assess the relative merits and limitations of each method.
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Use mass-based pycnometry measurements to find the volume of a void in a hollow cylinder and the mass fractions of aluminum and brass in a plugged (mixed) metal cylinder.
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Calculate results-based (values and uncertainties) experimental data, known mathematical relationships (e.g., between mass, volume, and density), and statistical methods (e.g., error analysis and propagation).
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Evaluate the experimental methods and their outcomes in terms of parameters such as reliability, difficulty, accuracy, and precision.
Explanation:
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