Na2HCO3 or sodium bicarbonate is also known by the name baking soda.
Yes, there is a difference. Na2HCO3 is sodium hydrogen carbonate, also known as disodium bicarbonate, while NaHCO3 is sodium bicarbonate, commonly referred to as baking soda. The difference lies in the number of sodium ions present in the compound.
Sodium hydrogen carbonate, also known as baking soda, decomposes when heated to produce sodium carbonate, water, and carbon dioxide gas. The chemical equation for this decomposition reaction is: 2 NaHCO3 → Na2CO3 + H2O + CO2
Sodium Bicarbonate and Sodium Hydrogen Carbonate are different names for the same chemical, Na2HCO3. Specifically, the "HCO3(2-)" part is called a "polyatomic ion", which essentially means it has an electrical charge. It has two names, and those names refer to the same exact chemical.
When 100 grams of NaHCO3 (sodium bicarbonate) and 100 grams of Na2CO3 (sodium carbonate) react with diluted sulfuric acid, carbon dioxide gas will be produced. The balanced chemical equations are: 2NaHCO3 + H2SO4 -> Na2SO4 + 2H2O + 2CO2 Na2CO3 + H2SO4 -> Na2SO4 + H2O + CO2 The amount of carbon dioxide gas generated can be calculated using stoichiometry with the given masses of NaHCO3 and Na2CO3.