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Alka-Seltzer Chips

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A chemical reaction is the interaction of 2 or more reactants that produces one or more new substances. The reactants in this experiment were distilled water and Alka-Seltzer tablets. Water contains H2O, and the ingredients in Alka-Seltzer are aspirin, citric acid, and sodium bicarbonate (NaHCO3). When sodium bicarbonate is placed in water, it dissociates into sodium (Na) and Bicarbonate (HCO3). When the bicarbonate splits apart, it reacts with the hydrogen ions from the citric acid. This forms carbon dioxide and water. When Alka-Seltzer and water react; it forms Carbon Dioxide Gas. The reactions forms when small bubbles form, and fizzing occurs. This must be visible to the eye, and the fizzing must also be heard. Increasing or decreasing the number of Alka-Seltzer tablets did change the …show more content…
The data taken does support the hypothesis written. When increasing the amount of tablets, the time of the reaction expanded, but when decreasing the amount of tablets; the time of the reaction reduced. For instance, when placing 2 Alka-Seltzer tablets in 200 mL of distilled water; the average rate of the chemical reaction was 93 seconds. When placing 1 Alka-Seltzer tablet in 200 mL of water; the average rate of a chemical reaction was 71 seconds. When placing .5 of an Alka-Seltzer tablet in 200 mL of water; the average rate of the chemical reaction was 48 seconds. When placing .25 of an Alka-Seltzer tablet in 200 mL of water; the average rate of the chemical reaction was 36 seconds. In each trial, when using 2 Alka-Seltzer tablets; the reaction was greater than that of 1 Alka-Seltzer tablet. This is due to the rate of collisions increasing because greater particles mean less space to move. Particles must move in a straight line. When they bounce back and forth; collisions occur during that period. By increasing the amount of particles; the collisions occur more frequently leading

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