How baking soda is prepared ? Write its two uses and give its pH.

1.	How baking soda is prepared ? Write its two uses and give its pH.
Answer» Baking soda is the common name of sodium bicarbonate (NaHCO₃). Solvay process: is used for the production of NaHCO₃ and Na₂CO₃ industrially. In this process, CO2, water, ammonia and brine solution in its concentrated form, are used as raw materials. The important chemical reaction that is used in the production of baking soda is: CO₂+ H₂O + NH₃ + NaCl ⇾ NaHCO₃ + NH₄Cl NaHCO₃ ⇾ Na₂CO₃ + CO₂ + H₂O CO₂produced is recycled to produce NaHCO₃. Uses of baking soda: (i) Reduces the acidity in the stomach (ii) Used in the process of washing as a water softener. (iii) Acts as a pesticide. (iv) Used in baking industries as CO₂ is generated (due to decomposition of NaHCO₃) which helps in the raising of the dough. Baking soda is naturally alkaline with a pH of 8.

Answer»

Baking soda is the common name of sodium bicarbonate (NaHCO₃).

Solvay process: is used for the production of NaHCO₃ and Na₂CO₃ industrially. In this process, CO2, water, ammonia and brine solution in its concentrated form, are used as raw materials.

The important chemical reaction that is used in the production of baking soda is:

CO₂+ H₂O + NH₃ + NaCl ⇾ NaHCO₃ + NH₄Cl

NaHCO₃ ⇾ Na₂CO₃ + CO₂ + H₂O

CO₂produced is recycled to produce NaHCO₃.

Uses of baking soda:

(i) Reduces the acidity in the stomach

(ii) Used in the process of washing as a water softener.

(iii) Acts as a pesticide.

(iv) Used in baking industries as CO₂ is generated (due to decomposition of NaHCO₃) which helps in the raising of the dough.

Baking soda is naturally alkaline with a pH of 8.

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