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Definition of NaHCO3
NaHCO3, also known as Sodium bicarbonate or Bicarbonate of soda, is an inorganic chemical compound with the formula NaHCO3. NaHCO3 is a white, odorless solid, which has a salty taste and is capable of polarizing water. NaHCO3 has a molecular mass of 84.007 g/mol. The NaHCO3 molecule consists of a sodium ion Na+, and a bicarbonate ion HCO3-. The bicarbonate ion HCO3- is formed from a carbonate ion CO32- that has received a proton H+. -
Properties: NaHCO3
2.1 Physical properties of NaHCO3: NaHCO3 is a white, odorless solid with a salty taste and a pH of about 8.5, indicating its weak alkaline nature.
2.2 Chemical properties of NaHCO3: NaHCO3 can react with acid to produce CO2 gas, water, and salt. NaHCO3 can also react with alkali to produce carbonate, water, and salt. -
Common chemical equations of NaHCO3:
NaHCO3 + HCl -> NaCl + CO2 + H2O
NaHCO3 + NH4Cl -> NH4HCO3 + NaCl
NaHCO3 + H2SO4 -> Na2SO4 + CO2 + H2O
NaHCO3 + CH3COOH -> CH3COONa + CO2 + H2O
NaHCO3 + H3PO4 -> Na3PO4 + CO2 + H2O -
Preparation of NaHCO3
4.1 Laboratory preparation of NaHCO3: NaHCO3 can be prepared from the reaction of Na2CO3 with CO2 and H2O.
Na2CO3 + CO2 + H2O -> 2NaHCO3
4.2 Industrial preparation of NaHCO3: In industry, NaHCO3 is usually produced by saturating a solution of sodium carbonate (Na2CO3) with CO2.