First, we have to do some convertions. Let's start with pounds to grams. The conversion factor will look like this:
.55 lbs/1 * 453.59237 g/1 lb = 249.47 grams. With significant sigures...250 grams.
This next conversion is easy, because 1 mL = cm3...105 cm3.
Now we plug that into the density formula (D=M/V), where our mass is 250 g, and our volume is 105 mL. Therefore, D=2.4g/cm3
float
The density is an intensive property; the density of lead remain unchanged in every piece of lead from this rod.
2.0-2.7mg/cm3
0,00045 dag/mm3.
The density of a pure sodium chloride crystal is 2,165 g/cm3.
A substance with density equal to 2.1 gcm3 it's sinking in water.
sink
float
float
about 1.1
A substance with a density of 1.3gcm-3 would sink in water. Float (APEX)
The masses of each are 8.1 cm3
20.3g Al
The density is an intensive property; the density of lead remain unchanged in every piece of lead from this rod.
2.0-2.7mg/cm3
19.3
0,00045 dag/mm3.