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# Density of a solid floating cube.

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A solid cube of unknown composition is seen floating upright in water with 30% of it above the surface. What is the density of the material?

I believe the answer is 0.70 g/cm^3.

https://brainmass.com/physics/mathematical-physics/density-of-a-solid-floating-cube-81991

#### Solution Summary

The mathematical solution is provided for the following question: A solid cube of unknown composition is seen floating upright in water with 30% of it above the surface. What is the density of the material?

\$2.19

## Density of Solids and Liquids

1-When calculating the density of your regularly shaped object, which measurement will limit your final result?

2-If when calculating the density of an object using Archimedes' Principle, you splash a few milliliters of water out of the graduated cylinder upon putting the object in the cylinder, how would that affect your density calculation (be specific)?

3-Explain why an object whose density you are trying to measure using Archimedes' Principle must have a density greater than 1 g/mL.

4-What is the density of an object that displaces 38.6 mL of water and has a mass of 55.362 g?

5-If an object made from the same material as that in question 5) were to have a mass of 100 g, how much volume (mL) would that object occupy? Use dimensional analysis and show your work!

6-Write the name and molecular formula of the organic compound you will use during this lab experiment.

(1) Write the chemical formula for sodium chloride.

(1) Write the chemical formula for magnesium chloride.

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