Question

the mass of an empty density bottle is 21.8 g , when filled completely with water it is 41.8 g and filled comlpetly with liquid it is 40.6 g .Find : a} the volume of density bottle , 2} the relative density of liquid .​

Answer 1

Hi there,

♤Given

●Mass of bottle is 21.8 g

●Mass of bottle with water is 41.8 g

●Mass of bottle with liquid is 40.6 g

☆The mass of water is 41.8-21.8= 20g

☆The desity of water is 1 g/cm^3

☆The volume of water = mass of water

◇So the volum of bottle is 20 cm^3

☆The density of bottle is the mass over the volum

21.8÷ 20 = 1.09 g/cm^3

☆The mass of liquid is 40.6 - 21.8 = 18.8g

☆The density of liquid is 18.8÷ 20 = 0.94 g/cm^3

☆The relative density is density of liquid over density of water

0.94 ÷ 1 = 0.94

♡Hope the answer is helpful

♡Plz mark it as brainliest answer

Answer 2

Answer:

1) 20$cm^{3}$

2)0.94

Explanation:

• Given, Mass of bottle is 21.8 g

                    Mass of bottle with water is 41.8 g

                    Mass of bottle with liquid is 40.6 g

• Mass of water in the bottle= 41.8-21.8

                                                        = 20g

• We know that density of water is 1 $g/cm^{3}$.

         Volume of bottle = Mass of water=20g

         So the volume of bottle is 20$cm^{3}$.

• Density of bottle is the mass per unit volume.

         Density=21.8÷ 20

                       = 1.09  $g/cm^{3}$.

• mass of liquid in the bottle= 40.6 - 21.8

                                                       = 18.8g

• Density of liquid = 18.8÷ 20

                                      = 0.94  $g/cm^{3}$.

• Relative density =$\frac{Density\ of \ liquid}{Density\ of\ water}$

                                      =$\frac{0.94}{1}$

                                     =0.94

• Hence, the volume of density bottle is 20$cm^{3}$ and the relative density of liquid is 0.94.

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