How to calculate the quantity of matter?

How to calculate the quantity of matter?


1. The amount of solute = the concentration of solute x the volume of solution c = n / V 2. The amount of solute = the number of particles / Avogadro constant (n = n / Na) 3. The amount of solute = the mass of solute / the molar mass of solute (n = m / m) 4. The amount of solute = the volume of gas / the molar volume of gas (n = V / VM) 5. C = 1000 ρ