Question

A 125ml flask has a mass of 32.5g when empty. When the flask is completely filled with a certain liquid it weighs 143.5g. What is the density of the liquid

Answer 1

Explanation

Given:

Mass of flask when empty = 32.5g

volume of flask when empty = 125 ml

Mass of flask when complitely full = 143.5

Required: Density

Solution

Step 1: Find the volume and mass of the flask

Volume = 125 ml

Mass = 143.5 - 32.5 = 111 g

Step 2: Find the density

Density = mass/volume

Density = 111g/125ml

Density = 0.888 g/ml

Answer

Density = 0.888 g/ml