How to Calculate the Density of a Mixture

••• Motortion/iStock/GettyImages

Density is defined as the mass per unit volume of a substance or mixture of substances. A mixture may be either homogeneous or heterogeneous. Density for an entire mixture cannot be calculated for a heterogeneous mixture, since the particles in the mixture are not uniformly distributed, and the mass changes throughout the volume. For a homogeneous mixture, finding the density requires taking two simple measurements unless you have a hydrometer that can measure the density directly.

    Measure the volume of the homogeneous mixture. If it is a liquid, pour some into a graduated cylinder. Read and record the volume. If the mixture is solid, pour some water into a beaker or graduated cylinder, read the volume and then place the solid in the water. Make sure the solid mixture is completely covered. Read the new volume and subtract the original volume to determine the difference. This difference is the volume of the solid mixture.

    Place the mixture on a mass scale and read its mass. If it is liquid mixture, be sure to subtract the mass of the container holding the liquid.

    Divide the mass by the volume to determine the density.

    Things You'll Need

    • Graduated cylinder
    • Mass scale

Related Articles

How to Calculate the Volume of a Powder Mixture
How to Convert Density to Grams
How to Calculate Volume of a Rectangular Prism
How to Calculate Mole Percent
Volume Vs. Mass Density
Density Vs. Concentration
How to Calculate Concentration From Density
How to Measure the Density of Liquids
How to Calculate Density
Difference Between Density & Mass
Gallons to Kilograms Conversion
How to Calculate Average Volume
How to Calculate Volume Using Density
How to Calculate the Percent Weight Per Volume
How to Calculate the Mass of a Solid
How to Find The Slope of a Line Given Two Points
How to Convert Volume From Density
How to Calculate the Density of a Solution
How to Find Mass Percentage
How to Make a Five Percent Solution With Salt

Dont Go!

We Have More Great Sciencing Articles!