Equation for Density

Equation for Density We can say density of a substance is its mass per unit volume. We can show the density by a Greek letter . We can say the density mathematically as ratio of mass and column. Therefore, we can write Examples 1: A block of aluminum has a volume of 18 cubic meters and a mass of 54 kg. Find the density of block aluminum. Solution: The given information is Volume = 18 cubic meters Mass = 54 kg We know the formula to find the density that is Now we can plug the values in this formula Examples 2: Sulfuric Acid has volume of 65 cubic meters and mass of 78 kg. Find the density of sulfuric acid. Solution: The given information is Volume of sulfuric acid = 65 cubic meters Mass of sulfuric acid = 78 kg We know the formula to find the density that is Examples 3: If the density of gold is 20 grams per cubic centimeter. Find the mass of a bar of gold that measure 6 cm x 4 cm x 2 cm. Solution: The given information is Density = 20 gm/cubic cm Volume = 6 x 4 x2 = 48 cubic cm We know the formula to find the mass that is Mass = Density x volume = 20 x 48 = 960 gm.