## What is the formula for density triangle?

The positions of each element of the triangle show us how they relate to one another through the formula above (Density = Mass / Volume, or ρ = m / V).

**How does the MDV triangle work?**

The M on top represents the mass of a body, while the D and V at the bottom represent its density and volume, respectively. Using it, three density triangle equations can be derived, one each for calculating the mass, density, and volume of an object. Hence, it is also sometimes called the mass volume density triangle.

**What is the force triangle?**

: a vector diagram whose sides represent three forces in equilibrium — compare force polygon.

### How do you memorize density?

Trick for Remembering the Density Formula Students can remember the formula by thinking of the phrase “dearly beloved”. (Some people use the phrarse “dumb love” or even “dense love” but I think “dearly beloved” is a little nicer, even if a bit archaic sounding.).

**What is an example of a density?**

Everyday Density Examples A Styrofoam cup is less dense than a ceramic cup, so the Styrofoam cup will float in water and the ceramic cup will sink. Wood generally floats on water because it is less dense than water. Rocks, generally being denser than water, usually sink.

**How do you calculate the density of a triangle?**

If we want to calculate density, we simply cover up density in the triangle and see what remains. Since mass is above volume, we divide mass by volume to get density. Density = Mass / Volume ρ = m / V

## How to calculate density from molecular weight Quora?

For a (+/- perfect) gas, the answer is easy. Let’s take oxygen: at NTP, one mole occupies 22.4 liters and weighs 32 g. In these conditions, the density is 32/22.4 = 1.428 g/l (or kg/m3). Similarly CO2 will have 44/22.4 = 1.964

**How to calculate the density of a substance?**

Number of Atoms (n) and Number Density (N) The number of atoms or molecules (n) in a mass (m) of a pure material having atomic or molecular weight (M) is easily computed from the following equation using Avogadro’s number (NA = 6.022×10 23 atoms or molecules per gram-mole): M mN n A (1) In some situations, the atomic number density (N), which

**What is the relation between atomic weight and density?**

At an atomic scale, there are two things that go into the density, which is ρ = mass/ volume . First, we have the number density, which is n = number of atoms/ volume . Then we also have the mass per atom, μ =mass/ atom.