PH meter

Log Rolling: A New Aquatic Trend or Sport? From the 20th century, an activity originally started as a lumberjack tradition of rotating a log in the water while trying to trip up your opponent until they fall off is now emerging in local pools all across the country. All the way from children to adults, this new aquatic event is starting to spark peoples’ attention. In this exposition I am going to describe whether or not log rolling is categorized into each of the four different segments that…

Based on Physical and Chemical Properties, Determination of Identities of Zinc, Sodium, Beryllium, Copper and Boron By: Shreya Uppala, Lizzy Jolly, and Kyrie Harrell Results: The first element we tested was zinc. Since zinc was already known, the density was stated to be 7.13g/mL and the hardness was a 2.5 based on the Mohs Hardness Scale. No magnetic attraction was observed when in contact with a magnet. Zinc had a shiny appearance with a light gray color and the strips of zinc added to…

the waters dissolved oxygen, nitrogen and phosphorus, and pH levels. The group with habitat quality assessed the waters velocity, temperature, water depth, discharge, riparian vegetation, and substrates. My group studied the micro invertebrates that lived in the Chippewa River. All of these factors that we tested contributes to the waters quality and to the surrounding environments. pH is a determined value based on a defined scale. pH of water is not a physical parameter that can be…

soil into lakes and streams. This mix makes waters lethal to crawfish, shellfishes, and other aquatic creatures. It creates an atmosphere that threatens the survival of aquatic life. Arthropods and fish die in water that has a pH level less than five. Water with a low pH level causes gill damage in fish and death to fish embryos. With a level of five, most fish eggs cannot hatch. The effects of freshwater acidification as carbon source changes from carbonate (HCO3) to carbon dioxide (CO2),…

optimum pH of trypsin is 8. Three different pH levels were tested, and each level consisted of three trials. The pH of 5 showed an average absorbance of 0.021±0.002, the pH of 8 showed an average absorbance of 0.167±0.030, and the pH of 11 showed an average absorbance of 0.088±0.001. Based on the standard deviation, there was a lack of variability between each trial for the pH levels of 5 and 11, yet the trials of the pH of 8 varied greatly compared to the other levels. The p-value between…

blended potato. The blended potato mixture was strained and put into a centrifuge, the liquid that was in the centrifuge contained the enzyme and remained on ice. The enzyme was placed in test tubes that had varying levels of pH buffers, substrate concentrations and temperatures; the pH, substrate concentration and temperature were the three variables. The data showed that each variable contained an optimum level at which the enzyme was most effective. Intro: Enzymes are vital to the existence…

become extinct. Ocean acidification occurs as the ocean absorbs carbon dioxide from the air which then causes the ocean 's pH level to decrease. As the ocean 's acid levels increase, it can affect marine life by helping organisms who make energy by combining sunlight and carbon dioxide, but hurts the chemical communication, impact, and growth of many organisms by increasing the pH. Overall, the increase in carbon dioxide is bringing severe consequences to our environment and needs people who…

the salivary amylase, the less the enzyme activity and vice-versa is true provided that other factors such as temperature and the pH are kept constant. Variables: Independent variables: • the concentration of the salivary amylase Dependent variables: • the enzymatic activity • the colour change of the saliva solution Controlled variables: • the temperature • ph Planning (b) – Pl (b): Requirements: 1. distilled water 2. 0.5% starch solution 3. buffer…

3.0 Results and Discussion Figure 1 shows the infrared spectrum for both crosslinked and non-crosslinked films. Both carrageenan and vanillin contain similar functional groups such as CH4, C=O, C-O-C, C-OH. There is no significant difference in the spectrum that can be detected for crosslinked and non-crosslinked film samples. The spectrum can be divided into upper and lower spectrum. In the upper spectrum for the region of 2000 – 3600 cm-1, O-H stretching (3100 – 3600 cm-1) and C-H stretching…

Introduction Bovine serum albumin (BSA) is a transport protein in cow’s blood stream, similar to Human serum albumin in human blood. It binds different types of drugs for delivery to various parts of the body. One of these drugs is warfarin, a blood anticoagulant. This research project’s focus was on the interaction between BSA and warfarin derivatives; our assumption was that the protein binding site has different affinities for different warfarin derivatives; this was to be determined by…