Pre$-$Lab Questions

How does an intensive property differ from an extensive property? Give an example of an intensive property

and of an extensive property.

In order to calculate the density of a solid or liquid sample, what measurements are needed?

The volume of a fixed mass of a liquid sample increases as the temperature rises from $20$ to

$40C.$ Does the density increase, decrease, or stay the same? Explain your answer.

A solid block of exactly $100\mathrm{.}0c{m}^3$ has a mass of $153\mathrm{.}6g.$ Determine its density. Will the block

sink or float on water?

A salvage operator recovered coins believed to be gold. A sample had a mass of $129\mathrm{.}6g$ and had

a volume of $15\mathrm{.}3c{m}^3.$ Were the coins gold $(d=19\mathrm{.}3\frac{g}{c}{m}^3)$ or just yellow brass $(d=8\mathrm{.}47\frac{g}{c}{m}^3)?$

Show your work.