"PH" Essays and Research Papers

Sort By:
Satisfactory Essays
Good Essays
Better Essays
Powerful Essays
Best Essays
Page 31 of 50 - About 500 Essays
  • Good Essays

    Observations of Chemical Changes Purpose: The purpose of this experiment is to observe chemical changes in common consumer products to determine if the chemicals are basic‚ acidic‚ or remain neutral when mixed with other chemicals. Procedure: In this experiment‚ various chemicals were mixed together‚ to determine a reaction. Using two drops from chemical 1 and two drops of chemical two‚ unless otherwise stated‚ then recording the type of physical reaction or color changes that occurred.

    Premium PH Acid Chlorine

    • 812 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Periodic Table: * Mass Number = protons + neutrons in the nucleus * Atomic Number = number of protons in the nucleus * Number of neutrons = mass number – atomic number Example: Lithium (Li) * # of protons + # of neutrons = mass # * 3 + 4 = 6.9/ 7 * The atomic mass is the mean of all the isotopes of Lithium in nature; round the number * Isotopes of a specific element have a varying number of neutrons * The number

    Premium Chemistry Acid PH

    • 2647 Words
    • 11 Pages
    Good Essays
  • Good Essays

    formatting of the pull quote text box.] [Type a quote from the document or the summary of an interesting point. You can position the text box anywhere in the document. Use the Drawing Tools tab to change the formatting of the pull quote text box.] pH < 7 | pH > 7 | Turn blue litmus red | Turn red litmus blue | Arrhenius Arrhenius Bronsted-Lowry Bronsted-Lowry Produce hydrogen ions | Produce hydroxide ions | Lewis Lewis A donor of hydrogen ions | An acceptor of hydrogen ions | Accepts

    Premium Acid PH Acid dissociation constant

    • 347 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Science Lab

    • 292 Words
    • 2 Pages

    Enzyme Activity Lab Objective: To determine the effect of temperature‚ PH and enzyme concentration on catalase activity. Introduction: What is an enzyme and how the enzyme works. Any of a group of complex proteins or conjugated proteins thatare produced by living cells and act as catalysts in specific biochemical reactions. The system in which enzymes work is often referred to as the ’lock and key’ system it’s where the enzyme and the substrate lock together. The substrate then unlocks into

    Premium PH Enzyme Catalase

    • 292 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Catalase Lab

    • 826 Words
    • 4 Pages

    From performing the pH experiment it has proven that pH buffer 7 is the optimum pH for catalase in potatoes. This is because the height of the bubbles was the highest of all three tests (pH 3‚ pH 7‚ pH 9) reaching an average height of 0.433 cm. See graph 3. While pH buffer 3’s average height was 0.233 cm only reaching a maximum height of 0.3 cm in Trial 3 and pH buffer 9’s average height being 0.333 cm only reaching a maximum height of 0.4 cm again in Trial 3. See table 1. Therefore this supports

    Premium Enzyme PH Temperature

    • 826 Words
    • 4 Pages
    Good Essays
  • Good Essays

    concentration of an acid‚ specifically H3O+‚ or a base‚ specifically OH-‚ in a solution will cause that solution to have a specific pH. Recall that pH is a logarithmic scale that is based on the concentration of H3O+ in solution. The pH scale ranges from 0-14‚ with an acidic solution having a pH lower than 7 on the pH scale and a basic solution having a pH greater than 7 on the pH scale. The word titration comes from the Latin word "titulus"‚ which means inscription or title. The French word title means

    Free Acid Base Sodium hydroxide

    • 493 Words
    • 2 Pages
    Good Essays
  • Powerful Essays

    Catalase activity in potato

    • 2534 Words
    • 11 Pages

    Investigation into how pH levels affect Catalase activity in potato samples – (enzymes) Introduction: The aim of this investigation is to understand and monitor the effects pH levels have on catalase activity within controlled potato samples. Catalase is a type of enzyme that is found widespread among organisms that grow in the presence of oxygen (almost all living things) its specific use is to speed up the decomposition of Hydrogen peroxide (H2O2) within cells. Hydrogen peroxide is a bi-product

    Free PH Buffer solution Enzyme

    • 2534 Words
    • 11 Pages
    Powerful Essays
  • Satisfactory Essays

    Enzymolgy Essential

    • 895 Words
    • 4 Pages

    contain 10cm3 of corn oil and 1cm3 of lipase were kept at a range of temperatures between 20°C and 100°C. At the start of the experiment‚ the pH of the contents in each test tube was constant‚ which was 6.5. [pic] Figure 1.1 Each test-tube was left for 30 minutes and the reading on the digital pH meter was then recorded. The pH readings against different temperatures are plotted in a graph‚ shown in Figure 1.2. [pic] Figure 1.2

    Premium Enzyme PH

    • 895 Words
    • 4 Pages
    Satisfactory Essays
  • Better Essays

    enzyme

    • 2347 Words
    • 10 Pages

    Enzyme Lab Name ___________________________ Assignment 1: Getting to Know Enzyme Lab: Setting Up an Experiment The first screen that appears in Enzyme Lab shows you a biochemistry lab containing all the reagents and equipment you will need to perform your experiments. Click on each item in the lab to learn more about its purpose. Once you are familiar with the lab‚ click on the Experiment button to begin the first assignment. This assignment is designed to help you become

    Premium PH Enzyme inhibitor Enzyme

    • 2347 Words
    • 10 Pages
    Better Essays
  • Good Essays

    Acid Rain Lab Acid rain is causing problems throughout the world. Acid rain is precipitation that has been combined with gases in the atmosphere‚ causing it to be slightly more acidic than normal rain. Acid rain has a PH level of about 5.0 compared to that of pure water’s 7.0. Acid rain is caused uniquely by human from such harmful wastes as the burning of fossil fuels. This type of rain is carried throughout the atmosphere‚ for hundreds of miles‚ harming countryside. The real question is whether

    Premium Germination Seed Embryo

    • 720 Words
    • 4 Pages
    Good Essays
Page 1 28 29 30 31 32 33 34 35 50