Properties of pH The manufacture’s claim is that Sensodyne toothpaste micro hardens tooth enamel to help protect against the effects of acid wear‚ helps stop the twinges of pain from sensitive teeth formulated with low abrasivity‚ neutral pH and gentle yet effective cleaning system. To find out if the manufactures claim on Sensodyne toothpaste is the correct level of pH. I expect the Sensodyne toothpaste to be a neutral pH level as the manufactures claim that this products pH level is neutral
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same end product‚ are done on a much larger scale in industry. The aspects they may differ in are equipment‚ time taken‚ and many other things. In this report I will explain how and why laboratory and industrial scale differ using the example of preparation of aspirin. The first difference is that instead of weighing the 2-hydroxybenzoic acid on scales on a work bench in a beaker as you would in small scale‚ it is easier and safer to weigh it onto scales‚ in a plastic bag on the floor. This is easier
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a Tri-Fold Brochure Using Word (adapted from an article by Jeff Davis of ZDNet) Your word processing program can do much more than print documents in portrait or landscape orientation. Using a simple three-column page design‚ you can turn your word processor into a desktop publisher without spending a dime. It’s simple to do and the results are great. In this lesson‚ you will learn how to create an effective‚ low-cost‚ professional-looking tri-fold pamphlet‚ using the do-it-yourself method
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1 Speed Quality in Apparent Motion and Flipbooks using the Likert Scale Rachel Anyanwu Psychology 3552: Laboratory in Sensation and Perception University of Connecticut at Storrs ABSTRACT Seven participants each viewed two flipbooks of slow and fast speeds of hand-drawn dots and stick figures. By counterbalancing the conditions‚ each participant watched the flipbooks according to the sequential order. After viewing either the slow or fast flipbooks‚ a questionnaire was used to collect
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------------------------------------------------- COLORIMETRIC DETERMINATION OF pH ------------------------------------------------- Abstract This experiment examined the result of the various color indicators combined with different buffer solution‚ thereby testing the precision and accuracy of determining the pH value colorimetrically. Colorimetric method is a simple and practical procedure with an important advantage: they do not get out of order as from time to time do the pH-meters. Four buffers (Acetate buffer‚ phosphate
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ECONOMIES OF SCALE Economies of scale are an important aspect of efficiency in production .Economies of can henceforth be define as ‘the reduction in average costs of production‚ that occur as a firm increases in size’. As businesses grow and their outputs increases‚they commonly benefit from a reduction in average costs of production.Total costs will increase with the increase in output‚but the cost of producing each unit falls as output increases .The reduction
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Professor Lanoix December 4‚ 2012 Pros and Cons of the Kinsey’s Scale Sex was such a horrible topic to talk about‚ but a biologist of Indiana University introduced a scale that broke the silence. The silence changed due to this biologist named Alfred C. Kinsey (1894-1956). Kinsey broke the silence because before the scale everyone would keep their sexual orientation to themselves and most likely did not tell anyone. In other words‚ he was a great influence to people because since then people have
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Ph Lab Report Bryon Kim 123013 B(2) Biology Background information/Research PH paper (litmus paper) determines how acidic or how basic a substance is. The paper changes color accordingly to color code on the pH scale. The pH scale starts from 0 to 14. The lower the number the more acidic it is. Zero is the most acidic‚ and 14 is the most basic while 7 is the neutral number for example water. Examples of an acid is lemon juice or multi purpose cleaner. Examples of a basic substance is shampoo or liquid soap
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Resiliency Scales for Children and Adolescents A critical review Katie Waghorn West Virginia University March 14‚ 2014 Author’s Note This paper was prepared for COUN 505 taught by Dr. Tina Walsh Introduction Resilience is a complex construct with many definitions. Most frequently‚ resilience can be defined as one’s ability to “bounce back” from an adverse situation. It is “interactive and contextual” (Prince-Embury & Saklofske‚ 2013‚ pg.19). However‚ some believe resiliency
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can reach a new pH level by interacting with soil. If water has a pH that is too high or too low‚ it can be life threatening to aquatic species and can corrode metal structures. After finding this out‚ I decided to test if water could reach an extreme pH just by interacting with soil around it. The question for this experiment therefore became the following. Will interaction with soil change the pH of water? I hypothesized that if water interacts with soil for three days‚ then the pH of the water will
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