10 Questions
What is the chemical formula of washing soda?
Na2CO3.10H2O
How can washing soda be obtained from baking soda?
By heating baking soda (NaHCO3)
List two industries where washing soda is used for purposes other than washing clothes.
Glass manufacturing and paper making
What is the main ingredient added to cakes to make them soft and spongy?
Sodium hydrogen carbonate (baking soda)
What is the function of tartaric acid in cakes?
Neutralizes the bitter taste of the salt
Write the chemical equation for the formation of sodium hydrogen carbonate used in baking cakes.
NaCl + H2O + CO2 + NH3 → NH4Cl + NaHCO3
What is the pH of the salt used to make tasty and crispy pakoras?
9
Identify the salt used to make pakoras and list its two uses.
NaHCO3 (Sodium Hydrogen Carbonate)
Why is sodium hydrogen carbonate considered a basic salt?
Because it is a combination of a strong base and a weak acid
Write the chemical equation for the conversion of sodium hydrogen carbonate into washing soda.
2NaHCO3 Heat Na2CO3 + CO2 + H2O
Test your knowledge on the production of sodium hydroxide and chlorine gas from common salt, and the important products and uses in the Chlor-Alkali process. Identify substances in acid-base reactions and more.
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