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Citric Acid and Baking Soda Experiment

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Henry Rogers

on 22 May 2014

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Transcript of Citric Acid and Baking Soda Experiment

By Henry Rogers, Dougie Neviera, Caleb Osemobor, and Willie Turchetta
Citric Acid and Baking Soda
The Experiment
The equation for the reaction is: H C H O (aq) + 3 NaHCO (s) → 3CO (g) + 3 H O(l) + Na C H O (aq)
This shows the law of conservation of mass (no mass can be gained or lost but repositioned)
Balanced Equation:
The equation is balanced because it has the same amount of hydrogen, carbon, oxygen, and nitrogen atoms on the reactant's side as the product's side
The Graph
The results ended in the controlled experiment being colder with a temperature of 16.5 degrees celsius and the experimental (30g of baking soda) ending in a temperature of 17.3 degrees celsius
This Reaction occurred because of an endothermic reaction, which has to do with thermal energy... Next slide has more

Endothermic reactions occur when atoms take away energy from the substance it is reacting with.
Because energy, more specifically thermal energy, is taken away the substance gets colder
Baking Soda and Citric Acid because when the sodium bicarbonate and the citric acid come ni contact they use too mu energy for each other and lose it, therefore making it colder
Endothermic Reactions
Citric Acid and Baking Soda
An Endothermic Reaction
Citric Acid and Baking Soda Reaction
The Experiment was to combine a mixture of citric acid and baking soda to experience the chemical reaction
We tested this and used the baking soda as a variable: (15g to 30g)
The reaction was that the two substances combined to create an endothermic reaction
Our Hypothesis for this experiment was that when we doubled the amount of baking soda, the temperature would drop to a colder temperature than it would in the controlled experiment.
Our Hypothesis ended up being the opposite of what occurred during this experiment, with the experimental staying at a higher temperature than the controlled.
The Graph
Full transcript