Question

A piece of metal with a mass of 147g and a volume of 21ml. Calculate the density of the metal.

Answer 1

density of a piece of metal = 7 gr/ml

Step-by-step explanation:

See the file please

Answer 2

The density of the metal is 7
`(g)/(mL)`

Step-by-step explanation:

Density is a quantity that allows you to measure the amount of mass in a given volume of a substance. The expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

`density=(mass)/(volume)`

Density, according to the International System of Units, is usually expressed in kilogram per cubic meter (
`(kg)/(m^(3) )`) or gram per cubic centimeter (
`(g)/(cm^(3) )`). Although it can also be expressed in any other unit of mass by volume.

In this case you know:

• mass= 147 g
• volume= 21 mL

Then:

`density=(147 g)/(21 mL)`

density= 7
`(g)/(mL)`

The density of the metal is 7
`(g)/(mL)`