State the chemical properties on which the following uses of baking soda are based:
(a) as an antacid (b) as a soda fire extinguisher (c) to make cake soft and spongy.
Answers
A) baking soda is a mild base which can dilute the excess acid formed during indigestion. Hence it acts as an antacids.
B)Baking soda when heated ,forms carbon-dioxide. This co2 surrounds the combustible substance and cuts the oxygen supply. Finally the fire gets extinguished.
C)when baking soda is heated, co2 is formed ,which is responsible for making the cake fluffy and soft as well.
A) Baking soda(NaHCO3) being alkaline so it neutralises the excess acidity in the stomach and relives indigestion
B) It can be used as a fire extinguisher as when NaHCO3 REACTS WITH SULPHURIC ACID GIVES OUT CO2 THAT HELPS TO EXTINGUISH THE FIRE
3)BAKING SODA IS USED TO MAKE SOFT AND SPONGY . WHEN BAKING SODA WITH TATRIC ACID REACTS WITH WATER IT FORMS (Na+)ions and CO2 + H20 and CO2 bubbles come out slowly making the dough soft and spongy