PH

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  • Ph Lab Experiment

    The purpose of this experiment is to determine the pH of known substances by use of a pH color indicator of red cabbage and the use of a pH meter. As well as, to observe the pH changes in a substance by adding in more basic of acidic to buffered solutions and unbuffered solutions. This experiment will also will show how to calculate H3O+, OH- and pH by use of known values. In order to do this lab, there are a few key components one needs to know and understand first. A solution is a homogeneous mixture of elements that are dissolved in water making it an aqueous solution. Solutions can form an acid, which is a substance that dissolves in water and gives a hydrogen ion, or proton (H+), to the water. It can also form a base, which is a substance…

    Words: 2243 - Pages: 9
  • Essay On Effect Of Ph On Catalase

    tables and graphs, the results indicate that the optimum pH level of Catalase is at the neutral pH of 7 with an increase in enzyme activity from pH 2 to pH 7 and a decrease of activity from pH 7 to pH 12. Hence, demonstrating a bell shaped curve (similar to theoretical data – See Background Information for reference) which can be seen as an effect of the specific pH on the catalase enzyme. This identified trend can also be supported by the raw data values of the control test tubes as it…

    Words: 1472 - Pages: 6
  • Optimum Ph Of Trypsin Essay

    It is hypothesized that the 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…

    Words: 808 - Pages: 4
  • Ph Lab Report

    determine the pH of solutions that were given by using litmus paper and pH machine. The Experiment was kind of successful except for an issue with one of the solutions. When we tried to figure out the pH by looking at the litmus paper; we were stuck between a pH of 6 and 7. The best choice was to choose a number in between 6 and 7. Based on the two methods used to find the pH the results were close to each other. In this experiment we were given the choice to choose eight substances and…

    Words: 798 - Pages: 4
  • What Is The Correlation Between The Discharge And Ph Of A River

    Introduction In my research I explored how the discharge and pH of a river are related and if there is any correlation between the two. Discharge is the measure of the total volume of water at a certain point in time recorded in cubic feet per second. pH is the acidity or alkalinity of the water measured on a scale from 1 to 14. I was interested to see if river discharge and pH levels had any relation and if the data collected could show any correlation. This information could be used to…

    Words: 996 - Pages: 4
  • Effect Of Ph On Sucrase Activity

    State the optimum pH for sucrase activity and describe how sucrase activity changes at more acidic and more alkaline pH values. Table 2: Effect of Temperature on Sucrase Activity Optical Density 10 °CC (50 °F) 20 °C (68 °F) 30 °C (86 °F) 40 °C (104 °F) 50 °C (122 °F) 60 °C (140 °F) 70 °C (158 °F) 1 0.006 0.273 0.791 0.940 0.927 0.807 0.613 2 0.010 0.285 0.761 0.954 0.934 0.846 0.604 3 0.009 0.255 0.773 0.941 0.907 0.845 0.642 average 0.008 0.271 0.775 0.945 0.923 0.833…

    Words: 1040 - Pages: 5
  • Essay On Titration Between Acid And Sodium Hydroxide

    and two, we can see the recorded pH changes when hydrochloric acid and sodium hydroxide were added respectively. By combining these results, graph one was formulated. This graph representing the titration curve of hydrochloric acid and sodium hydroxide. By referring to this graph it can be observed that the equivalence point is roughly at 7. Below is what would be expected of a similar experiment: Figure 1 (Chemguide.co.uk) By comparing figure one to graph one, it can be concluded that the…

    Words: 1648 - Pages: 7
  • Using The Henderson-Hasselbalch Equation For Buffers

    Henderson-Hasselbalch equation for buffers, it’s possible to calculate the pH based on the ratio of acid to conjugate base, or calculate the ratio given the pH and pKa value. Finding charge on a protonated amine: The pKa value given for the amino group on any amino acid specifically refers to the equilibrium between the protonated positive nitrogen and deprotonated neutral nitrogen. You’ll never see a neutral nitrogen deprotonated to form a negative on an amino acid. The pKa of the protonated…

    Words: 1975 - Pages: 8
  • Amoebic Gill Disease Study

    Freshwater Treatment for Amoebic Gill Disease Freshwater treatment for AGD requires checking for few things before and during the treatment to carry out a successful and effective treatment. 1. Freshwater Source: The freshwater source should be checked for temperature, total ammonia nitrogen and ammonia percentage, pH, hardness, salinity and any harmful plankton. Temperature: Freshwater with temperature closer to the temperature that treating fish are being reared in is best choice. Colder…

    Words: 1943 - Pages: 8
  • Pepsin Experiment

    In this experiment of pepsin reacting to egg whites in different pH levels, if the pH is altered it will result in the increased rate of precipitation of the pepsin enzyme in raw egg white. Pepsin is a protease enzyme that is found in the human stomach and is used to break down proteins into peptides and finally into amino acids so that it can be absorbed by the body to create liver tissue and to form other bodily tissues. This process was first discovered in 1836. The enzyme is most…

    Words: 1493 - Pages: 6
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