How to Calculate the Density of a Liquid
What are the steps to calculate the density of a liquid?
Given: A 125 ml flask and stopper has a mass of 66.000 g. A 25.0 mL sample of unknown liquid is pipetted into the flask. The flask, stopper, and liquid have a total mass of 92.0002 g.
Calculate the density of the liquid.
Answer:
The density of the liquid is 1.040 g/mL.
To calculate the density of a liquid, you need to follow these steps:
- Find the mass of the liquid by subtracting the mass of the flask and stopper from the total mass.
- Calculate the density by dividing the mass of the liquid by the volume of the liquid.
Given data:
- Mass of flask and stopper = 66.000 g
- Total mass of flask, stopper, and liquid = 92.0002 g
- Volume of liquid = 25.0 mL
1. Find the mass of the liquid:
Mass of liquid = Total mass - Mass of flask and stopper
Mass of liquid = 92.0002 g - 66.000 g = 26.0002 g
2. Calculate the density of the liquid:
Density = Mass of liquid / Volume of liquid
Density = 26.0002 g / 25.0 mL = 1.040 g/mL
Therefore, the density of the liquid is 1.040 g/mL.