Evan garner
Chemistry
March 14th
Question: what will sodium decompose into when heated?
Materials:
Sodium bicarbonate
Bunsen burner
Crucible and lid
Tongs
scale
Ceramic fiber pad
Striker
Stop watch
Pipe stem triangle
Ring stand
Ring clamp
Procedure:
First The crucible was weighed and recorded for mass. Then you add 2.32 grams of sodium bicarbonate that was measured using a balance and placed in the crucible. The lid was placed on top of the crucible. The crucible was placed above the burner then The burner was ignited, and the flame was adjusted to obtain a blue cone. The crucible was heated using the burner for 7 minutes. The flame was turned off, and the crucible was allowed to cool down to room temperature. The crucible was weighed
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conclusion: The results show that when sodium bicarbonate is heated, it decomposes to form sodium carbonate (1.51g), and carbon dioxide gas. This is most likely because the percent yield was only 3.1% off. Sodium carbonate is known to be a solid crystal substance which agrees with the crystal structure substance formed on the crucible furthering the idea that sodium carbonate actually formed. We could have also tested this by dropping water onto the substances produced to see if it dissolves or not since sodium carbonate dissolves in water. In this experiment NaHCO3 decomposes into Na2CO3, CO2 and H2O when heated. At the particle level, NaHCO3 is composed of sodium ions, bicarbonate ions (HCO3-), and water molecules (H2O). When heat is applied to NaHCO3, the thermal energy breaks the bonds between the bicarbonate ion and the hydrogen ion. This causes the formation of carbonic acid (H2CO3). The resulting Na2CO3 is formed from the remaining sodium ion and the carbonate ion (CO3^2-), which is produced from the decomposition of the bicarbonate