In this lecture you will learn:

BASIC DEFINITIONS

GOLD and SILVER have different densities
so the same weight of material has different volumes and different volumes
displace different amounts of water.
the HIGHER the density, the SMALLER the
volume of water is displaced. HIGH/SMALL

density of gold 19.32g/cm3
(grams per cubic centimeter)
density of silver 10.5 g/cm3 remember that the WEIGHT of the crown =
the WEIGHT of the gold given to the goldsmith
HOWEVER, IF the crown displaces MORE than
10 cm3 of water... means it is NOT pure gold
water is 1 gram = 1 ml = 1 cubic centimeter is a STANDARD – least dense, hydrogen gas, with a density
of 0.000089 grams per cubic centimeter
– A cubic foot of gold is
1200
pounds !!!!
Now you know why robbers stealing gold SHOULD look like they are getting a hernia trying to move it! density of gold 19.32g/cm3
