How to convert molar mass and concentration?

Molar concentration refers to the amount of solute in solution divided by the mass of solvent. Calculation formula: the amount of substance N of solute B in the solution is divided by the mass of solvent A, that is, N/M. ..

In a very dilute aqueous solution, it can be approximately considered that the quantity concentration of the substance is equal to the molar concentration. This is because when the aqueous solution is very dilute, the mass of solute can be ignored, the volume of solution can be considered as the same as that of water, and the density is1kg/L. The mass of solvent water is approximately equal to the mass of solution, and numerically equal to the volume of solution V(L).

Because the molar concentration of solute B has nothing to do with temperature, the volume of solvent in the concentration of substance may be affected by temperature. Therefore, molar concentration is mostly used in thermodynamic treatment, and molar concentration is mainly used in electrochemistry to express the concentration of electrolyte. However, when the solvent is a dilute solution of water, that is, bb

Extended data:

Matters needing attention in molar concentration:

1, and the mass m refers to the mass of the solvent rather than the mass of the solution.

2. Molar concentration refers to the concentration of substances in the solution, not the molar concentration.

3. Solute B can be a simple substance, a compound, or a specific combination of ions or other complex ions.

Baidu Encyclopedia-Molar Concentration