Question

A container filled with 60 cm³ of liquid weighs 90g. The container alone weighs 72g. Find the density of liquid.​

Answer 1

$\huge \red{ \mid{ \fbox{ \tt{Solution}} \mid}}$

$\sf{Mas \: of \: empty \: container = 72g}$

$\sf{Mas \: of \: container + Liquid = 90g}$

$\sf{ \therefore \: {Mass \: of \: liquid = 90 - (mass \: of \: container)}}$

• $\sf{90 - 72 = 18g}$

$\sf{ Volume \: of \: liquid = 60 cm³}$

$\sf{ \therefore \: {Density \: of \: liquid = Mass \: of \: liquid/Volume \: of \: liquid}}$

• $\sf{18 \: g/60 \: cm³ = 0.3 g/cm³}$

$\sf{ \color{blue}{Density \: of \: liquid = 0.3 g/cm³}}$

Answer 2

Mass of empty container=72g

$\sf{Mas \: of \: container + Liquid = 90g}$

$\sf{ \therefore \: {Mass \: of \: liquid = 90 - (mass \: of \: container)}}$

$\sf{90 - 72 = 18g}90−72=18g$

$\sf{ Volume \: of \: liquid = 60 cm³}$

$\sf{ \therefore \: {Density \: of \: liquid = Mass \: of \: liquid/Volume \: of \: liquid}}$

$\sf{18 \: g/60 \: cm³ = 0.3 g/cm³}18g/60cm³=0.3g/cm³$

$\sf{ \color{blue}{Density \: of \: liquid = 0.3 g/cm³}}$