What is the difference between density and mass?

A brief explanation (which may answer your question) is the density divided by the mass.

Those denser than water will sink and those with lower density than water will sink. High quality, low density material with mass distributed mass

Mass is related to the number of subatomic particles (protons, electrons, neutrons) in the object. Each of these particles has a "mass", the sum of which is the total mass of the object.

The way we experience quality is often combined with gravity. On the earth, high quality things will feel heavy

To accelerate things with higher quality, more power is needed. Things that require more torque to rotate something with a higher moment

In Newton's law of gravitation, two masses cause gravity. So the influence of gravity exists in a high-quality place

F is a vector, G is a gravitational constant, M and m are two masses, r (square) is a distance between objects

Density, mass per unit volume of material material. The density formula is d = M / V. Where d is density, M is mass, and V is volume. Density is usually expressed in grams per cubic centimeter. For example, water has a density of 1 gram per cubic centimeter and a ground density of 5.51 grams per cubic centimeter. Density can also be expressed in kilograms per cubic meter (MKS or SI unit). For example, the air density is 1.2 kg per cubic meter. The density of general solids, liquids and gases is stated in textbooks and manuals. Density provides a convenient way to obtain body mass from volume and vice versa; mass is the value multiplied by volume by density (M = Vd), volume is the mass divided by density (V = M / d). The weight of a body is usually more practical than its mass and can be obtained by multiplying the mass by the gravitational acceleration. See also percentage

Density is basically how many "things" are packaged in a particular volume. It is a comparison of mass and volume of objects. Keep in mind the most important equations: density = mass ÷ volume. Based on this equation, the density will increase if the volume remains the same even if some weight (or mass) increases. Also, if the volume remains the same even if the mass decreases, the density decreases. Light liquids (such as water and vegetable oils) float above heavy liquids because they are less dense than heavy liquids (such as honey and corn syrup). The same amount of two different liquids used in a container has different density because of different quality. Large (high density) liquid sinks to light weight (low density)