the molar mass of sodium oxalate is 134g/mol.

1. The molar mass of sodium oxalate is equal to the molecular mass of sodium oxalate, that is, 134g per mole.

2. the definition of molar mass is the mass of a substance with a unit amount of substance, which is called molar mass and is represented by the symbol m.

3. When the amount of a substance is expressed in moles, the unit of molar mass is grams per mole, which is numerically equal to the atomic mass or molecular mass of the substance.

4. For a certain compound, its molar mass is fixed. The quality of matter changes with the amount of matter.

5. Sodium oxalate is a strong base and weak acid salt. According to the principle that whoever is strong shows who is strong, the aqueous solution of sodium oxalate is alkaline and can react with CaCl2 solution to generate white calcium oxalate precipitate. The chemical equation of the reaction is Na2C24+CaCl2 = 2naci+CaC241.

Functions and uses of sodium oxalate:

1. It is mainly used as an intermediate in the production of oxalic acid, and can also be used in cellulose finishing agents, textiles and leather processing. Used as a reference for calibrating potassium permanganate solution in analytical chemistry. Yellow luminous agent for fireworks. Standard for calibrating potassium permanganate solution.

2. Calibrate the reference reagent of potassium permanganate solution. It is also a metal precipitant, reducing agent, complexing agent, masking agent, fabric and tanning finishing agent.

3. As a masking agent for leather processing, it can enhance the alkali resistance of the complex. Not easy to precipitate. It can be used as a reagent for removing stains and ink stains.

4. It has strong reducibility. Burning is decomposed into sodium carbonate and carbon monoxide. When heated above 4℃, it is decomposed into sodium carbonate, and its solubility in 1g water is 3.7g(2℃) and 6.33g(1℃), and it is insoluble in ethanol and ether.