Reaction of Sodium Hydrogen Carbonate with Hydrochloric Acid:
Reaction:
- The reaction between sodium hydrogen carbonate (NaHCO3) and dilute hydrochloric acid (HCl) produces sodium chloride (NaCl), water (H2O), and carbon dioxide gas (CO2).
- The chemical equation for this reaction is:
NaHCO3 + HCl → NaCl + H2O + CO2
Explanation:
- When sodium hydrogen carbonate reacts with hydrochloric acid, a double displacement reaction occurs.
- Sodium hydrogen carbonate is a base, and hydrochloric acid is an acid. When they react, the hydrogen ions (H+) from the acid combine with the bicarbonate ions (HCO3-) from the base to form carbonic acid (H2CO3).
- Carbonic acid is unstable and quickly decomposes into water and carbon dioxide gas. The carbon dioxide gas is what causes the fizzing or bubbling seen during the reaction.
- The remaining sodium ions (Na+) from the base combine with chloride ions (Cl-) from the acid to form sodium chloride, which is a salt.
- Water is also formed as a byproduct of the reaction.
- Overall, the reaction results in the formation of salt, water, and carbon dioxide gas.
By following the above steps, you can explain the reaction between sodium hydrogen carbonate and dilute hydrochloric acid in detail.