Question

A student recorded the following observations to find the density of a given solid 1
mass of the solid = 24 g, Initial volume of water = 70 mL, Final volume of water = 90 mL
The density of the solid is-
(a) 12 kg/m3
(b) 1.2 g/m3
(c) 12 g/m3
(d) 1.2 g/cm3

Answer 1

$\huge \red{\fbox{\red{\fbox{Answer}}}}$

$\large\bf{Given:}$

$\rightarrow\sf{Mass \: of \: solid(M)=24g}$

$\sf{→Initial \: volume \: of \: solid(V_1)=70ml}$

$\sf{→Final \: volume \: of \: solid(V_2)=90ml}$

$\large \bf{To \: find:}$

$\leadsto \sf{Density \: of \: solid.}$

$\large \bf{Formula \: required:}$

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

$\large \bf{According \: to \: Question:}$

$\sf{Volume(V)=Final \: volume(V_2)-Initial \: volume(V_1)}$

$\bf{Volume(V)=90ml-70ml=20ml}$

$\bf{Then,}$

$\sf{Density= \frac{Mass}{Volume} = \frac{24kg}{20 {m}^{3} } = 1.2 kg/ {m}^{3} }$

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