Question

$60cc$ of a liquid of relative density $1.4$ are mixed with $40cc$ of another liquid of relative density $0.8$. The density of the mixture is

• A. $1.16g/cc$
• B. $2.26g/cc$
• C. $11.6g/cc$
• D. $116g/cc$

Answer 1

The correct option is A $1.16g/cc$

given : - $S_1=1.4V_1=60cc$

$S_2=0.89/cc{V}_2=40cc$

The density of the mixture is given by:

$S_{mixture}=\frac{S_1{V}_1+S_2{V}_2}{V_1+V_2}$

$S_{mixture}=\frac{1.4\times 60+0.8\times 40}{100}$

$S_{mixture}=1.16g/cc$