Question

7) You think you have found a diamond. Its mass is 5.28 g and its volume is 2 cm3. Calculate the density

Answer 1

Answer:

$\boxed {\tt d=2.64 \ g/cm^3}$

$\boxed {\tt Not \ a \ diamond}$

Explanation:

Density can be found by dividing the mass by the volume.

$d=\frac{m}{v}$

The mass is 5.28 grams and the volume is 2 cubic centimeters.

$m=5.28 \ g\\v= 2 \ cm^3$

Substitute the values into the formula.

$d=\frac{5.28 \ g }{2 \ cm^3}$

Divide.

$d=2.64 \ g/c^3$

The density of the unknown substance is 2.64 grams per cubic centimeter.

The density of a diamond is about 3.5 grams per cubic centimeter. Since 2.64 is not equal to 3.5, the unknown substance is not a diamond.