Question

A container of olive oil has a volume of 100 mL. If the olive oil has a mass of 90 g, what is its density?

Answer 1

A. 0.9 g/mL

C. topaz (density = 3.5 g/cm³)

A. m = V x D

Explanation:

Question 1:

Given parameters:

Volume of container = 100mL

Mass of olive oil = 90g

Unknown:

Density = ?

Solution:

Density is the mass per unit volume of matter in a substance.

The mass is the quantity of matter it contains. Volume is the space the substance occupies.

Mathematically;

  Density = $\frac{Mass}{Volume}$

Input the parameters;

    Density = $\frac{90}{100}$  = 0.9g/mL

Question 2:

Given parameters:

Mass of mineral = 70g

Volume of mineral = 20cm³

Unknown:

Identity of the mineral = ?

Solution:

Density is an intensive property of matter. All pure samples of matter will have the same density irrespective of how they are formed or where they are located on earth.

If we can find the density of the mineral then we can know this mineral from the given choices.

Density is the mass per unit volume of a substance.

       Density = $\frac{mass}{volume}$

                     = $\frac{70}{20}$  

                     = 3.5g/cm³

This is the mineral topaz because it's density corresponds with that of the solved one.

Question 3:

To find the mass of an object;

  Since density is :

                Density = $\frac{Mass}{Volume}$

      Now make mass the subject of the expression to give;

          Mass = Density x volume

              m  = V x D

learn more:

Density brainly.com/question/2690299

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