Question

A measuring cylinder has a mass of 120g when empty. when it contains 50cm of liquid, the total mass of the measuring cylinder and the liquid is 160g. what is the density of the liquid?

Answer 1

Answer:

40/50 g/cm cube

Explanation:

Mass of an empty cylinder-120g

Mass of cylinder with liquid-160g

Mass of liquid-(Mass of cylinder with liquid-Mass of an empty cylinder)

= (160-120)g

=40g

Volume of liquid-50cm cube

Density=Mass/Volume

=40/50 g/cm cube

Answer 2

Given :

• Mass of cylinder with liquid (m₁) = 160g
• Mass of empty cylinder (m₂) = 120g
• Volume of liquid = 50cm³

Need to find :

• The density of the liquid.

Solution :

★ Firstly, finding the mass of the liquid.

• Mass of liquid = (m₁ - m₂)
• Mass of liquid = (160 - 120) g
• Mass of liquid = 40g

★ Now, finding the density of the liquid.

• Density = Mass of liquid / Volume of liquid
• Density = 40g/50cm³
• Density = 0.8g/cm³

Hence, the density of the liquid is 0.8g/cm³.