Carbon+Dioxide's+Affect+on+Carbonated+Beverages


 * CARBON DIOXIDE CONTENT AND PH OF CARBONATED BEVERAGES

 __Article__ ** Ehlen LA, Marshall TA, Qian F, Wefel JS, Warren JJ. Acidic beverages increase the riskof in vitro tooth erosion. Nutr Res; 28(5): 299-303.

This lab conducted by Leslie A Ehlen tested the hypothesis that pH and titratable acidities of soft drinks ultimately affects the amount of erosion of ones teeth. They tested the pH and titratable acidity of the drinks and then they stuck the teeth into these drinks for a certain amount of time, conducting an in vitro lab. Upon examining the teeth, they found that the acidity of the drink had little to do with how much erosion occurred. Apple juice had the least amount of erosion associated with it, even though it was also the most acidic beverage. Therefore this lab determined by in vitro methods that the pH and acidity of drinks does not affect the amount of decay a tooth will experience upon contact with this beverage.

This picture shows us trying to heat the bottles in order to get all the carbon dioxide out.

**__Results__ **  Table 1: Data collected during the lab || ** Mass before ** || ** pH before/ immediately after opening the can ** || ** Mass after ** || ** pH after ** || || // +/- 0.2 grams // || // +/- 0.01 // || // +/- 0.2 grams // || // +/- 0.01 // || || 371.2 grams || 3.80 || 367.4 grams || || || 627.6 grams || 3.18 || 620.8 grams || 2.56 || || ||  || 619.0 grams || 3.15 || || 640.4 grams || 3.10 || 634.9 grams || 2.78 || || ||  || 633.3 grams || 3.27 || || 654.4 grams || 3.10 || 650.5 grams || 2.49 || || ||  || 648.7 grams || 3.10 || || 475.8 grams || 6.76 || 472.1 grams || 6.76 || || 517.7 grams || 3.44 || 511.4 grams || 3.32 || || ||  ||  ||  || || +/- 0.2 grams || +/- 0.01 || +/- 0.2 grams || +/- 0.01 || || 363.7 grams || 4.09 || 361.8 grams || 4.74 || || 628.6 grams || 2.84 || 620.5 grams || 2.81 || || 642.9 grams || 2.93 || 636.4 grams || 3.85 || || 652.6 grams || 2.86 || 647.5 grams || 2.57 || || 480.8 grams || 6.57 || 478.1 grams || 6.72 || || 515.1 grams || 3.24 || 511.7 grams || 3.58  ||  Table 2: Calculations and Change in pH or Mass || ** Change in Mass ** || ** Change in pH ** || || // +/- 0.4 grams // || // +/-0.02 // || || 3.8 grams || || || 6.8 grams || -0.62 || || 8.6 grams || -0.03 || || 5.5 grams || -0.32 || || 7.1 grams || +0.17 || || 3.9 grams || -0.61 || || 5.7 grams || 0.00 || || 3.7 grams || 0.00 || || 6.3 grams || -0.12 || || ||  || || // +/- 0.4 grams // || // +/- .02 // || || 1.9 grams || +0.63 || || 8.1 grams || -0.03 || || 6.5 grams || +0.92 || || 5.1 grams || -0.29 || || 2.7 grams
 * ** Soda **
 * ** Trial 1 **
 * Mendota Sparkling Water
 * Diet Coke
 * // Second measurements //
 * Sprite
 * // Second measurements //
 * Mountain Dew
 * // Second measurements //
 * Mean Bean Java Monster
 * Monster Energy
 * ** Trial 2 **
 * Mendota Sparkling Water
 * Diet Coke
 * Sprite
 * Mountain Dew
 * Mean Bean Java Monster
 * Monster Energy
 * ** Soda **
 * (Mass before- Mass after) **
 * (pH after – pH before) **
 * ** Trial 1 **
 * Mendota Sparkling Water
 * Diet Coke
 * // Second measurements //
 * Sprite
 * // Second measurements //
 * Mountain Dew
 * // Second measurements //
 * Mean Bean Java Monster
 * Monster Energy
 * ** Trial 2 **
 * Mendota Sparkling Water
 * Diet Coke
 * Sprite
 * Mountain Dew
 * Mean Bean Java Monster

|| +0.15

||
 * Monster Energy

|| 6.3 grams || +0.34  ||  Nutrition Labels:





Observations:  Summary Paragraph: The data, in general, showed a change in pH when carbon dioxide was removed from the beverage. Mendota Sparkling Water pH changed by 0.63 when 1.9 grams of carbon dioxide was released into the air. Also Sprite’s carbon dioxide content changed by 6.5 grams and the pH increased by 0.93. Mountain Dew, however, lost 5.7 grams of carbon dioxide and the pH did not change. The Moutain Dew also had other things in it besides water and carbon dioxide, like erythorbic acid. This data, however, was not always consistent.
 * The diet coke fizzed in a different way from the other sodas. I was almost smaller bubbles.
 * The mountain dew seemed to have the biggest bubbles.
 * The sodas were sitting in the sun overnight and for part of the morning
 * <span style="font-family: 'Times New Roman',Times,serif;">Side note: in trial 2 the diet coke was shaken too much and therefore may have lost some extra mass from that.