Fermentation

            In our experiment with pH, we did three replicates, hoping for accurate readings. By doing, three replicates we found out results had variations. Our hypothesis states if the rate of fermentation is dependent on pH, in acidic pH the reaction will happen at a faster rate. From this statement out hypothesis is partially correct. The acidic pH3 never reacted at a fast rate. After the first five min interval in test one, it dropped 7mm and stayed at that measurement throughout the test. In test two for pH3, the water dropped 4mm and stayed at the same measurement throughout the test. In test three for pH3, the water dropped 6mm and once again stayed at this measurement throughout the test. From out three tests our hypothesis was not true. The acidic pH3 never moved at a fast rate. The acidic pH5 was true the hypothesis in the three tests we did. The acidic pH5 moved at a fast rate and reacted faster. In test one pH5, the water level dropped every five min. interval. It dropped 4-5mm each interval. In test two, pH5 stayed at 13mm after tow five min. intervals and then began to drop at a faster rate. In test three, pH5 dropped at a fast rate. (2-6mm every five min. interval) The pH7 was not true to the hypothesis. The pH7 is neutral and is not suppose to move the water measurement. In our tests pH7 reacted and the water measurements varied. In test one pH7 dropped form 5mm to 25mm in the five, five min. intervals. In test two, the pH7 dropped to 6mm after the first five min. interval and stayed at 6mm through the rest of the test. In test three, the pH7 dropped from 9 to nineteen. The pH11 (base) stayed true to the hypothesis. In our tests, the pH11 stayed at a steady rate throughout the tests. In test one, pH11 stayed at 8mm. In test two pH11, stayed at a steady 9mm. In test three pH11 stayed at a steady 5mm. The pH3 and the pH11 acted the same way in the tests. Our control in the tests was water and yeast.