Question

A substance having a density of 0.16 g/cm³ has a mass of 1.28 g. What is its

volume?​

Answer 1

Answer:

Density (D) is a quantity defined as mass (m) per unit volume (v): D = m ÷ v. Since these three quantities are related, you can find one of them if you know the other two. This is more helpful than it sounds because density is often a known quantity that you can look up, assuming you know the composition of the material.

Calculations are straightforward for solid objects, but things get more complicated for liquids, where density changes with temperature, and for gases, for which density is dependent on temperature and pressure.

Answer 2

Answer:

Density of a substance is defined as the amount of mass present per unit volume. In terms of formula we can write it as:

$\boxed{ \bf{ Density = \dfrac{Mass}{Volume}}}$

According to the question,

Density of the substance = 0.16 g/cm³

Mass of the substance = 1.28 g

Substituting the information in the formula we get:

$\implies 0.16 = \dfrac{1.28}{Volume} \\\\\\\implies Volume = \dfrac{1.28}{0.16}\\\\\\\implies \boxed{ \bf{Volume = 8\:\:cm^3}}$

We know that,

1 cm³ = 1 mL

Therefore, 8 cm³ is equal to 8 mL.

Hence the volume of substance in (mL) is 8 mL.