PH

A Bunsen burner was used to heat the beaker and we were able to measure it by using a thermometer. We also used ice to lower the temperature of the water. In some cases, we needed to measure the pH by using the strip and analyzing by comparing it to the pH chart. The vinegar, bromothymol, sodium hydroxide and Lugol was shared throughout the classroom by other classmates. Before the labs began, we initiated by labeling the two trays. The four-well tray reagent tray was…

The experiment performed provided insight on the importance of acid-base interactions and the pH of solutions that are involved in a variety of aspects including industrial, environmental, and biological contexts. Back titration was used to determine the number of moles of HCl acid that were neutralized by a single tablet of several variations of commercial antacids. In theory, the antacid that neutralized the largest number of moles of acid was found to be the most effective. The results…

The persistant effectss of AMD devastate animals and plant life, and they can change aquatic environments in a drastically horrifying way, as "Many impacted streams have a pH of 4 or lower -- similar to battery acid"(Acid Mine Drainage, earthworksaction.org). Acid mine drainage ravages environments, and even though containing and treating the water helps; some aquatic environments have become so heavily polluted and unaccommodating…

particularly human influences. A wastewater affluent region in Oso Bay showed very high concentrations of Inorganic and organic nitrogen, phosphate, and carbon; it also showed a low concentration of dissolved oxygen, chlorophyll, and a more acidic pH (Wtz, et al. 2015). Signatures of eutrophication…

Gasmalla et al Trop J Pharm Res, January 2014;13 (1): 61 Tropical Journal of Pharmaceutical Research January 2014; 13 (1): 61-65 ISSN: 1596-5996 (print); 1596-9827 (electronic) © Pharmacotherapy Group, Faculty of Pharmacy, University of Benin, Benin City, 300001 Nigeria. All rights reserved. Available online at http://www.tjpr.org http://dx.doi.org/10.4314/tjpr.v13i1.9 Original Research Article Nutritional Composition of Stevia rebaudiana Bertoni Leaf: Effect of Drying Method Mohammed Abdalbasit…

protocells because modern hydrothermal vents are able to generate a continuous source of energy. In addition, it is believed that hydrothermal vents are able to facilitate precursors of organic material into organic material, while also retaining a pH levels that would allow protocells to emerge and evolve (Baross and Hoffman, 1985). This theory also is able to explain the short geologic time gap between the formation of oceans and the emergence of life because hydrothermal vents are found…

Introduction In this experiment, the goal was to isolate an organic substance. Using extraction, a basic, acidic, and neutral substance was expected to be extracted from the original unknown compound. Extraction is a process that allows the separation of substances that were previously mixed together through the use of a solvent1. This can be useful in situations where the substance has both the desired product and undesired byproducts in it. In order for extraction to work, the solvent must…

murders, they had enough evidence. Although Haigh had confessed, he pleaded insanity with the hopes of only being put in a mental hospital for a few months and being released. This plea failed, and he was charged with murder. Acidic chemicals have a pH ranging from 0-7. These acids usually have a very sour taste to it. The term “acid”is derived from the latin term acere, which means sour. (properties of acids and bases) Acids are tested with litmus paper, and turn it red, and destroy the…

Introduction Enzymes are specialized proteins that act as catalysts. Enzymes are a key part of many biological processes because they are capable of lowering the activation energy of a chemical reaction. By lowering the activation energy enzymes are able to speed up reactions allowing for multiple chemical processes to occur at a faster rate in many living organisms. Enzymes work by binding to specific molecules called substrates. The enzyme observed in this experiment was amylase and its…

land and air we breathe. Although it does not only affect what is on land, but it is affecting our oceans more than many people realize. Our oceans absorb a huge majority of the CO2 in the air, and by doing this it is acidifying the oceans causing a pH imbalance in the…