why is sodium hydrogencarbonate used in and antacids?

Open in App

Solution

Dear Student

Sodium bicarbonate, commonly known as baking soda, with chemical formula NaHCOâ‚ƒ. Also called as sodium hydrogen carbonate.

Antacid neutralises the stomach acidity by increasing pH. Baking soda is sodium bicarbonate which is amphoteric in nature (that is, it reacts with both acid and base).
Aqueous solution of NaHCO₃ produces OH^-ions which neutralises the excess acid in the stomach.
HCO₃ ^-+ H₂O →→ H₂CO₃ + OH^-

Regards

Suggest Corrections

Similar questions

(a) What is the common name of sodium hydrogencarbonate?

(b) What happens when a solution of sodium hydrogencarbonate is heated? Write equation of the reaction involved.

Which of the following compounds are administered as antacids?
(a) Sodium carbonate
(b) Sodium hydrogencarbonate
(c) Aluminium carbonate
(d) Magnesium hydroxide

Q. Answer the following:
(a) Why is plaster of Paris written as

{CaSO}_{4} . \frac{1}{2} H_{2} O

? How is it possible to have half a water molecule attached to CaSO₄?
(b) Why is sodium hydrogencarbonate an essential ingredient in antacids?
(c) When electricity is passed through an aqueous solution of sodium chloride, three products are obtained. Why is the process called chlor-alkali?

Q. On heating sodium hydrogencarbonate, it decomposes into sodium carbonate, water and oxygen gas.

Q. Why are cimetidine and ranitidine better antacids than sodium hydrogen carbonate or magnesium or aluminium hydroxide ?

Join BYJU'S Learning Program