Calculating molar volume with known molar mass density and constant

Calculating molar volume with known molar mass density and constant


Molar volume v = molar mass / density
p. This kind of problem can be solved by the method of unit conversion: molar mass: kg / mol density: kg / m ^ 3 molar volume: m ^ 3 / mol, then kg / mol / (kg / m ^ 3) is just equal to m ^ 3 / mol, which is the unit of molar volume



The value of Avogadro constant? The concept of Moore?


The Avogadro constant is defined as the number of atoms in 12g12c. The value of 6.02 × 1023 is an approximate value of Avogadro constant, which is different from each other. The symbol of Avogadro constant is Na, not a pure number, and its unit is mol-1. Avogadro constant can be measured by many experimental methods



Calculation of molar formula with Avogadro constant


M = m / Na (M is the mass of a particle, M is the molar mass of the particle, and Na is the Avogadro constant)



The mass of one mole of NaCl is the main process


1X58.5g/mol=58.5g



The molar mass of NaCl is 0.1mol, and the mass of CO2 is 0.1mol


The molar mass of NaCl is 58.5g/mol and that of 0.1mol CO2 is 0.1mol * 44g/mol = 4.4g