Why is the density of an unknown metal that has a mass of 158 grams and a volume of 20 milliliters?

Answer 1

The density of the metal is 200 grams per 18 cubic centimeters, or 200/18 grams per cubic centimeter or 11.11 grams per cubic centimeter. We can also write our answer as 11.11 g/cc or 11.11 g/cm3 or 11.11 g-cm-3 depending on how we wish it to look. All these things say the same thing. To find the density of a material when we have a given mass and volume, we must find the mass per one unit of volume. This means dividing the volume units into the mass uints to generate that mass per one unit of volume figure. It is the mass per one unit of volume that is the density of a material.

Answer 2

201.0/18.9 = 10.6 grams per cubic centimeter, to the justified number of significant digits (the limiting datum is 1.89).

Answer 3

20.4/18.6 = 1.097 grams per cubic centimeter. (The depressed final digit may not be significant.)

Answer 4

Density = mass/volume.

In this case 18.5/2.36 =7.84 g per cm3 ,which is roughly that of steel.

Answer 5

density is equal to the mass divided by the volume:-

density = mass/volume

So:-

201/ 18.9 = density

density = 10.635 gcm-3

gcm-3 is equal to grams per cm3

Answer 6

158/20 = 7.9 g/ml density

Answer 7

89.89

Answer 8

1.5 g/cc