chem project - Some Gum for Thought Hypothesis: Chewing...

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Some Gum for Thought Hypothesis: Chewing Orbit gum prevents tooth decay by neutralizing acid in the mouth. Molecules: xylitol, carbonate, phosphate (the pictures that you looked up. Don’t forget to put the corresponding citations from the reference) Chemical Principles: Saliva contains several molecules that function as buffers. These include proteins, phosphates, and carbonates. [2] Phosphate salts are often used in the laboratory to prepare buffer solutions. When phosphate neutralizes acid, it works like this: PO 4 3- + H + HPO 4 2- + H + H 2 PO 4 - + H + H 3 PO 4 The main buffer is saliva is carbonate. It works like this: H + + HCO 3 -  H 2 CO 3  CO 2 + H 2 O The mouth is an open system. Carbon dioxide leaves the system as a gas [1] and because of Le Chatelier’s Principle, this shifts the equilibrium to the right, allowing the system to neutralize more acid. A buffer is a weak acid and its conjugate base or a weak base and its
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chem project - Some Gum for Thought Hypothesis: Chewing...

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