Matt+and+Ben


 * PROJECT PROPOSAL**

//**Project Topic:**//
 * The effect of temperature on CO2 emission in both diet and regular soda, as well as the effect of adding both regular ice and ice watered down with H2O.**

//**Chemistry Concept:**//
 * Solubility of gases, Product-Reactant Equilibrium, carbonic acid.**

//**Hypothesis:**//
 * If the temperature of the soda is lower, then the amount of CO2 gas emitted will also decrease.**
 * If the ice added to the solution of soda is wet, less CO2 will be emitted.**

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//**Abstract:**//

//In this lab, the goal of the project was to observe if the temperature of a bottle of soda affected the amount of carbon dioxide (CO2­­) emitted when opened. By massing a full bottle, unscrewing the cap, and massing again, it was shown that both types of soda (regular coke, and diet coke caffeine free), had different results. In regular Coca-Cola, it was found that the colder the temperature, the more CO­2 ­was emitted, while in Diet Coke it was found that the opposite occurred as the colder the temperature the less CO2 was emitted. According to Henry’s Law, “the solubility of a gas is directly proportional to the partial pressure of the gas.” Before a bottle of carbonated soda can be opened, the gas inside the bottle (almost pure CO2) rests on top of the solution at around 1.00 atm. When the can is opened, some of the CO2­ escapes creating the signature hissing sound. Because the pressure of the liquid is now lower, some of the gas escaping creates bubbles at the top of the drink. The results found indicated a polynomial curve as opposed to a linear curve. Using the equation C=kP, it was deduced that the polynomial curve was due to the change in temperature rather than the change in concentration. //
 * //Temperature and ice's effect on CO2 emission//**

//Key Terms: Henry’s Law, solubility, pressure, partial pressure, Standard Temperature and Pressure (STP), concentration, Ideal Gas Law //


 * //Lab Procedure//**


 * Materials needed:**
 * **Ample Soda**
 * coke
 * diet coke/low cal soda
 * scale
 * refrigerator
 * Ice
 * Procedure**
 * 1) Obtain three bottles of regular coke, and three bottles of diet coke caffeine free.
 * 2) Starting with the regular coke, mass each bottle and record in lab notebook.
 * 3) Carefully open each bottle and allow CO2 to escape. *Watch Loss of Product!!* Re-mass the bottle and record in lab notebook.
 * 4) Obtain two more bottles of each type of soda.
 * 5) Refrigerate overnight.
 * 6) Repeat steps 1-3 with cold bottles.
 * 7) Obtain the last two bottles; one of each.
 * 8) Shake bottle violently for about seven seconds. Unscrew cap *Very slowly* letting minimal CO2 out. Record mass in lab notebook.

a. If the wet ice trial is being done, then the mass is measured after water is added to the ice 4. Mass the full bottle of soda, and find the mass of the solution. (This can be done by subtracting the empty bottles mass from the mass of both) 5. Pour a full bottle of soda into the beaker of ice, immediately record mass. 6. Find the amount of CO2 lost.
 * 1) Obtain more samples of each type of soda.
 * 2) Acquire an empty bottle of the same size (this can either be left over from previous tests, or you can dump a full one out). Mass the empty bottle and record.
 * 3) Acquire samples of ice, and mass in a separate beaker, and record.

//**Apparatus and Chemicals Needed**//
 * **A rubber stopper apparatus must be obtained.**
 * Insert picture of rubber stopper/apparatus***


 * //Citations://**
 * "Temperature Dependence of Rate." //Chemistry Department - University of Florida //. N.p., n.d. Web. 20 Feb. 2012. <http://www.chem.ufl.edu/~itl/2045/lec **