compounds that generally have opposite characteristics. They have there own unique traits‚ acids taste sour‚ turn litmus red while bases taste bitter and turn litmus blue. The term pH relates to measuring the acidity or alkalinity of a solution‚ such as vinegar‚ or even a damp substance like soul. The neutral pH is 7‚ which is essentially water‚ with lower numbers indicating acidity and higher numbers indicating alkalinity. Hydronium ions (H3O+) are formed when water molecules (H2O) bond with
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Bio 104-03 Lab #3- Acids Bases‚ and Buffers 1. An acid is a substance that releases hydrogen ions as they desolve in water and ranks lower than seven on the pH scale. An example of an acidic substance is lemon juice. A base is a substance that accepts hydrogen ions and ranks higher than seven on the pH scale. An example of a base substance is hand soap. A neutral substance ranks a seven on the pH scale and has equal concentrations of H+ and OH-. An example of this is pure water. Electrolytes
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Biology 20 IB Design Lab Does increasing or decreasing the ph level of a 3% concentration H2O2 (l) solution affect the amount of oxygen released between 15.0ml of the solution and a 5g sample of liver? The reaction is measured by the difference in mass of a balloon that is used to capture the amount of gas released by the catalase enzyme found in liver reacting with a basified 3% H2O2 (l) and an acidified 3% H2O2 (l) . Chemical reactions occur when two or more molecules interact and the molecules
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Running head: THREE ABBREVIATED RESEARCH PLANS Three Abbreviated Research Plans Patricia Bolivar Walden University Research Theory‚ Design‚ and Methods RSCH- 8100H-6 Dr. Rodney Bowden November 18‚ 2012 1 THREE ABBREVIATED RESEARCH PLANS 2 Three Abbreviated Research Plans Introduction This paper illustrates how a public health practitioner when presented with a problem‚ issue‚ or situation in the community can use a quantitative‚ qualitative‚ or mixed methods approach strategy
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Lab 6.C Hypothesis: If enzyme activity is affected by the pH of a solution‚ then the enzymes will experience the greatest activity at a pH of 6. Variables: Independent Variables Dependent Variable Controls Four different pH values (10‚ 7‚ 6‚ and 3) Change in color of the solution The amount of potato extract‚ pH solution‚ and catechol used (1 cm +/- .1cm) Size of the test tubes Amount of time allowed for the catechol to sit with the potato extract and pH solution (20 minutes with 5
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Windows 7 is the latest release of Microsoft Windows‚ a series of operating systems produced by Microsoft for use on personal computers‚ including home and business desktops‚ laptops‚ netbooks‚ tablet PCs‚ and media center PCs.Windows 7 was released to manufacturing on July 22‚ 2009‚ and reached general retail availability on October 22‚ 2009‚less than three years after the release of its predecessor‚ Windows Vista. Windows 7’s server counterpart‚ Windows Server 2008 R2‚ was released at the same
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Enzyme Activity Lab Hypothesis: 1] Are enzymes reusable? Yes‚ enzymes are reusable. 2] Which of the following do you think contain catalase? [Manganese dioxide‚ chicken meat‚ apple‚ carrot‚ potato‚ or chicken liver] I think that the manganese dioxide‚ apple‚ and carrot contain the catalase. 3] Would grinding the materials affect enzyme activity? I think that grinding the materials will increase enzyme activity. 4] Would temperature affect enzyme activity? I think that
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De Leon‚ Nicca Andrea Guevara‚ Angelica Nicole Santos‚ Marie Angela Villacrucis‚ Alexus Judd I. Problem As mentioned earlier‚ OHaganBooks.com has two main competitors‚ JungleBooks.com and FarmerBooks.com and no other competitors of any significance. The following table shows the movement of customers during July. (Thus‚ for instance‚ the first row tells us that 80% of OHaganBooks.com’s customers remaining loyal‚ 10% of them went to JungleBooks.com and the remaining 10% to FarmerBooks.com)
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Purpose: The purpose of this lab was to test how objects slightly acidic or slightly basic will affect the way catalase‚ the enzyme tested‚ denatures‚ or breaks down. Hypothesis: If the potato is acidic‚ it will react with the H2O2 more than it will with the raw‚ plain potato because the acid will denature the enzyme faster. The manipulated/independent variable is the raw‚ plain potato while the responding/dependent variable is the other types of potatoes used in the experiment. Materials:
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Irresistible? By Elizabeth Potter December 5‚ 2012 Lab Section 503 Abstract The over all goal of the Irresistible lab was to verify a buffer’s ability to resist changes in pH with consecutive 1mL additions of either a strong acid (HCl) or base (NaOH). The experiment entailed preparing a combination 10 buffered and non-buffered solutions and then monitoring the pH changes as a strong acid or base was added to the solution. By performing this experiment‚ it was found that with increasing amounts
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