Answer:
[tex] \boxed{\sf Density \ of \ unknown \ substance = 0.79 \ g/cm^3} [/tex]
Given:
Mass = 15.8 g
Volume = 20 cm³
To Find:
Density of unknown substance
Explanation:
Formula:
[tex] \boxed{ \bold{Density = \frac{Mass}{Volume}}}[/tex]
Substituting value of mass & volume in the formula:
[tex] \sf \implies Density = \frac{15.8}{20} \\ \\ \sf \implies Density = 0.79 \: g/cm^3 [/tex]