Write the chemical name of Na2CO3. 10H2O and Na2 CO3 . Write the significance of 10 H2O. Mention the term used for water molecules attached with a salt. With the help of chemical equation. Explain the method of preparation of both Na2CO3. 10 H2O and Na2CO3. Also list two uses of Na2CO3. 10 H2O
The chemical name of (Na2CO3.10H2O) is sodium carbonate decahydrate. 10 H2O represents the water of hydration. It is prepared by Solvay process.The reactions involved are:
NaCl + CO2 + NH3 + H2O → NaHCO3 + NH4Cl
2 NaHCO 3 → Na2CO3 + CO2 + H2O
Na2CO3 + 10H2O → Na2CO3.10H2O
Uses:
It is used in paper industry
It is used for softening of water