Question

A liquid has a volume of 100cm3 and a mass of 85 g. The density of water is 1.0g/ cm3.How does the density of the liquid compare with the density of water? *

Answer 1

The density of the liquid compare with the density of water is 0.85 .

Explanation:

Given :

Volume of liquid , V=100\ cm^3V=100 cm

3

.

Mass of given amount of volume , m = 85 \ gm=85 g .

Also , density of water is , \rho_w =1 \ g/cm^3ρ

w

=1 g/cm

3

.

Now , we know density is given as :

\begin{gathered}\rho=\dfrac{m}{V}\\\\\rho=\dfrac{85}{100}\\\\\rho=0.85\ g/cm^3\end{gathered}

ρ=

V

m

ρ=

100

85

ρ=0.85 g/cm

3

Now , relative density is given as the ratio of density by density of water .

\begin{gathered}R.D=\dfrac{\rho}{\rho_w}\\\\R.D=\dfrac{0.85}{1}\\\\R.D=0.85\end{gathered}

R.D=

ρ

w

ρ

R.D=

1

0.85

R.D=0.85

Therefore , the density of the liquid compare with the density of water is 0.85 .

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