Environment Lab Report

The results of our experiment illustrate to us facts

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rinsing out all of our pieces of equipment when needed. The results of our experiment illustrate to us facts that we already knew from the introduction of the lab; the addition of an acid to a solution will cause the pH level to drop while the addition of a base will cause the pH to rise. Our data only further verify these claims; the addition of the Rolaid antacid, an assumed base, caused the pH of the distilled water to rise from 6.86 to 6.92. The addition of that solution to the soda, an acid, also caused the pH level to rise significantly from 2.92 to 5.12 in the end. The opposite was done with lemon juice; the addition of 10 mL of lemon juice caused the distilled water’s pH to drop from 6.86 to 2.94. That diluted lemon juice then caused the milk’s pH to drop from 6.60 to 6.10 after the 30 mL had been mixed in with the 50 mL of milk. In an every day sense of these results, it is clear how the Rolaid antacid would help somebody suffering from something like acid reflux or stomach acid because it would neutralize the pH levels in their body. And on the other side, the experiment shows us how milk can spoil due to lowered pH levels. Questions 1. Describe the relationship between pH of soda and the quantity of antacid. Is the relationship increasing or decreasing? Is the relationship linear or does it appear that the pH is approaching a plateau?
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As more antacid solution is added to the soda, the pH level of the soda solution rises; therefore, the relationship is increasing. The pH is appearing to reach a plateau since the range between pH levels drops as more antacid is added. 2. Describe the relationship between pH of milk and quantity of dilute lemon juice. Is the relationship increasing or decreasing? Is the relationship linear or does it appear that the pH is approaching a plateau? Unlike the Rolaid-soda solution, the pH of the milk decreases as more dilute lemon juice is added, meaning the relationship is decreasing. This solution seems to be more linear than the other mixture since the first two additions dilute lemon juice caused relatively the same change in pH level, but the third caused significantly lower drop in the pH; moreover, it seems to be reaching a plateau, but is too hard to determine with the amount of data given.
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