PH Essays

  • Calvin-Bjerrum Ph Titration Lab Report

    1083 Words  | 5 Pages

    2. Irving Rossotti Method Calvin-Bjerrum pH titration technique as adopted by Irving & Rossotti is generally used for determining the proton-ligand and metal-ligand formation constants. The procedure consists of: (A) Determination of the formation curve of the system. This is expressed as a plot of n (formation function) against pL for metal ligand system and a plot of n A against pH for a proton-ligand system (Definitions of the terms n , n A and pL are given below). (B) The calculation of the

  • Buffer And Buffer In Ph

    1899 Words  | 8 Pages

    ABSTRACT This experiment is about buffer and pH changes. Buffer is an aqueous solution consisting of a mixture of either a weak acid and its conjugate base or weak base with its conjugated acid. It means that it has the property that the pH of the solution changes very little when a small amount of acid or base is added to it. Buffer solutions are used as a means of keeping pH at a nearly constant value in a wide variety of chemical applications. The experiment is carried out to helps us understand

  • Soil Ph Level Essay

    1023 Words  | 5 Pages

    Why a Soil’s Ph Level is Crucial Step to Gardening The key to harnessing your gardening skills is to constantly educate yourself with the right information and tools to help you grow the best produce and healthiest plants. In this article, we will help you determine what is soil level and why it is important to your gardening technique. Before you start planting your seeds, you should learn how to properly determine your soil’s pH level. The pH level refers to the measurement of your soil’s acidity

  • PH Debate Analysis

    1868 Words  | 8 Pages

    An Overview on Federalism Through the PH Debate Context The problem with concepts in political science like federalism is it’s taken for granted. When advocates and critics debate the pros and cons of federalism in the country, it seems as if it’s a single and straightforward issue and idea, devoid of nuances. The need for clarification and understanding of the concept is important to raise the level of its discussion in our society. Paleker provided a conceptual analysis of federalism by delineating

  • Enzymatic Browning Lab Report

    1137 Words  | 5 Pages

    UNIVERSITI TUNKU ABDUL RAHMAN UNIT DESCRIPTION : Food Chemistry NAME : Yong Zhi Rhen ID : 1307297 YEAR & SEMESTER : YEAR 3 SEMESTER 2 PARTNER’S NAME : Tan Kai Jie, Bernard Hiew, Leng Li Zhou Practical group : P1 EXPERIMENT NO. : 3 EXPERIMENT TITLE: Measurement of Extent of Nonenzymatic Browning DATE : 15/1/2016 LECTURER : Dr. Khoo Kong Soo Experiment 3 Title: Measurement of Extent

  • Enzyme Rate Experiment

    1379 Words  | 6 Pages

    Experimenting the Effects of pH Levels on a Liver’s Enzyme Rate of Reaction What is the effect of pH levels with variations of 1.0, 2.0, 5.0, 7.0, 9.0 (±0.5) on the effect of rate reaction measured by volumetric amount in mL (±2.5) when time (180 seconds), temperature (23ºC) and substrate concentration (1g of 100%liver (±0.01)) are kept constant? This experiment was successfully conducted by placing the pieces on liver inside several flasks holding different pH levels and measuring the amount

  • Buffer Lab Report

    1344 Words  | 6 Pages

    Introduction Buffer is a solution that resists a change in pH when bases or acid are added. Solutions that are acidic contain high concentrations of hydrogen ions (H+) and have pH values less than seven. Buffer usually consist of a weak acid, and its conjugate base or a weak base and its conjugate acid. The function of buffer is to resist the changes in hydrogen ion concentration as a result of internal and environmental factor. This buffer experiment is important so that we relies the important

  • Ocean Acidification Essay

    861 Words  | 4 Pages

    The topic of this research paper will cover over Ocean Acidification and the effects on marine ecosystems. Ocean acidification is the decrease in pH levels of the Earth 's oceans, due to overbearing carbon dioxide being brought by the atmosphere. The carbon dioxide is drawn by seawater, where the chemical reactions take place, which minimize the pH levels in the ocean, the carbonate levels and the important calcium carbonate which these sea creatures need. When carbon dioxide disperses in this ocean

  • Alpha Amylase Research Paper

    1155 Words  | 5 Pages

    sectors such as clinical, medicinal and analytical chemistry.The fungal isolates include Aspergillus species, Mucor species and Rhizopus species. The parameters such as optimal incubation period, pH and starch concentrations were considered in the study. Overall result showed maximum activity at acidic Ph 6 at concentration of 3% and 5% with 4 days of incubation

  • Reflection On Vanadium Extraction

    973 Words  | 4 Pages

    aqua-to-organic phase ratio on vanadium extraction percentage from leaching solution by various amine extractors (pH =6 for aliquot 336, pH=3.5 for alamin 336 and pH = 2.5 for LA-2 amberlite, organic phase concentration is 0.1 molar) The effect of organic phase concentration Figure 10 shows the effect of different concentrations of aliquot 336 extractor on vanadium extraction efficiency at different pH and in the aqua-to-organic ratio of 1. As shown in Fig. 10, by increasing the organic phase concentration

  • Ocean Acidification And Its Effects Of Ocean Acidification

    898 Words  | 4 Pages

    Ocean Acidification Lab Dyana Padron Chemistry Ms Johnson June 1st 2015 Introduction: Ocean acidification is when the ocean 's pH is downsized. Ever since the industrial revolution, CO2 (carbon dioxide) has increased in the earth 's atmosphere, and much has been absorbed by the oceans, which has made a very large increase in the ocean 's acidity, when carbon dioxide is absorbed into the water, it dissolves forming carbonic acid, which is a factor that take a large part in the acidity raising,

  • Trihalomethane Research Paper

    2953 Words  | 12 Pages

    Chemistry Extended Essay “How does pH affect the concentration of trihalomethanes formed in a sample of reservoir water when it is disinfected with chlorine or chloramine and to what extent do both chloramine and free chlorine decompose when exposed to ultraviolet light?” Abstract This investigation aims to find out how pH affects the concentration of trihalomethanes formed in a sample of reservoir water when it is disinfected with chlorine or chloramine and the extent to which both

  • Orange Juice Lab Report

    1075 Words  | 5 Pages

    preserved orange juice are presented in Table 1. The pH of the examined orange juices ranged from 3.30 to 3.66. The pH decreased with increasing week of storage indicating acidity in orange juices. The use of sodium benzoate, sodium metabisulphite and potassium sorbate as preservatives significantly influence the pH of orange juice. The pH of samples was stable throughout the first and second week of storage. However, on the third week of storage, the pH of orange juice preserved using sodium metabisulphite

  • Batch Obsorsption Studies: Batch Absorption Method

    981 Words  | 4 Pages

    studies Adsorption experiments were conducted as per the design developed with response surface Box-Behnken methodology. The experiments were carried out in 250-mL Erlenmeyer flasks with the working volume of 100 mL of reaction mixture. The initial pH of the solution was adjusted to the desired value by adding 0.1 M NaOH and HCl. The flasks were shaken for the specified time period in a rotary shaker. The flasks were withdrawn from the shaker after the desired time of reaction. The residual phenol

  • Enzymes In Food Industry

    2766 Words  | 12 Pages

    salt linkages, and Van der Waal 's forces which can minimising leakage of the enzyme during use(“Enzyme immobilization” 2013, 2). However, the link between enzymes is strong but it will reduce break if the presence of substrate increases or changes of pH level temperature. Thus, adsorption is a simple and cheap method which easily to prepare. 5.1.2 Covalent binding Covalent bonding is the formation, bond between the enzyme and the support matrix (“Enzyme immobilization” 2013, 2). The binding reaction

  • Pantoprazole Sodium Sesquihydrate Lab Report

    2955 Words  | 12 Pages

    thereby it is very efficient for the treatment of gastric and duodenum ulcers. But pantoprazole sodium is acid labile drug that will degrade in acidic environment of stomach resulting in therapeutic inefficacy. Hence it is necessary to bypass the acidic pH of the stomach which can be achieved by formulating delayed release dosage forms (single unit or multiple units) by using different enteric polymers The present study was an attempt to formulate and evaluate enteric coated tablets for pantoprazole sodium

  • Causes Of Ocean Acidification

    2640 Words  | 11 Pages

    Definition “The acidification of an ocean currently is a greater and a faster then anything geologists can catch in the fossil record of the previous 65 million years” Main causes of acidification Ocean Acidification as its name suggests, the lowering pH of an ocean water. Its is caused by the suspension of an reaction of the carbon dioxide in the water .The process used for making of a soft drinks to produce a bubbly acidic taste. However as one of may unclear a clam living in pool filled with

  • Brrønsted-Lowry Acid Ionization Lab Report

    861 Words  | 4 Pages

    quantitative values can alter the pH in a solution. This procedure was carried out by mixinging specific acid or base solutions together and comparing the experimental value with the actual accepted value. For Part 1, the weak acid, acetic acid, was titrated with the strong base of NaOH. After adding small amounts of NaOH portions at a time until reaching the pH value of 11.5, the points recorded lead to the determination of the half equivalence point of the pH and the pKa . The half equivalence

  • Distilled Water Lab Report

    1197 Words  | 5 Pages

    A table to show the pH of certain solutions Solution Test 1 Test 2 Test 3 Average Distilled water 7.7 7.9 7.8 7.8 2.5 g NaHCO3 (Sodium bicarbonate) 8.1 8.3 8.3 8.2 10ml of 0.85% lactic acid 3.1 3.2 2.9 3.1 5g NaHCO3 (Sodium bicarbonate) 8.1 7.9 8 8 Dry ice 4 4.1 4.2 4.1 Solid NH4Cl 6 6.8 6.5 6.4 0.1M HCl 2.5 2.4 2.3 2.4 Compare the increase or decrease of pH in different solutions to the pH of the distilled water. According to the research done in the Literature Review, acidosis is usually caused

  • Ocean Acidification: Assignment: Ocean Acidification

    2070 Words  | 9 Pages

    Faiza Shareef OCEAN ACIDIFICATION The stuffing of carbon dioxide in our earth’s environment is mirrored by an increase in the amount of carbonic acid present in the oceans .The sea water absorbs carbon dioxide, the reaction occur and the pH of the sea water decreases the carbonate ion concentration in the water and the saturation states of the biologically important calcium carbonate minerals also reduces. These reactions are named as ocean acidification .The ocean is found associated