Page 1 - 3.LESSON NOTES (CH-2 BAKING SODA)
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SAI International School
                                                       Class-X

                                               Subject_ Chemistry
                                          Topic- Acids, Bases & Salts
                                Sub Topic- Study of Salts – 3. Baking Soda

                                                    Lesson notes

                   •  STUDY OF SALTS-

                              3.  Baking Soda  (Common Name)
                                                 OR

                               Chemical Name – Sodium Hydrogen Carbonate
                               Chemical Formula – NaHCO3






















                               Preparation of Baking Soda-
                   •  Baking Soda is prepared by Solvay’s Process-

                In this process –
                         i.   carbon dioxide,
                        ii.   water,
                        iii.   ammonia and
                        iv.   brine solution in its concentrated form,
                are used as raw materials.

                   •  The important chemical reaction that takes place is:

                     CO2 + H2O + NH3 + NaCl   →    NaHCO3  +  NH4Cl








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