Salinity is the measure and concentration of all the salts dissolved in water. Usually measured in parts per thousand (ppt or )‚ ocean salinity is 35ppt and the average river water salinity is 0.5ppt or less (University of Rhode Island). Many factors go into salinity‚ making water salty. To name a few‚ salinity affects the environment through sediment from rocks washes into the ocean‚ evaporation of ocean water‚ and sea ice formation are known to increase the salinity of the ocean (NASA). It
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Title: Liquid Chromatography Author: Gloria Contreras Lab Partner: Jose Montanez Instructor: Teresa Potter Date Work Performed: January 13‚ 2015 Date Submitted: January 20‚ 2015 Abstract: In this lab‚ liquid chromatography is used to separate the Red 40 and Blue 1 dyes inside of grape flavored Kool-Aid. It was determined that the 5% isopropanol will remove the Red 40 dye from the stationary phase. The 28% isopropanol will remove the Blue 1 dye from the stationary phase. The more
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Period 12 Chemical Aspects of Life & Spit Lab ABSTRACT: The objective for the Spit lab was to test two different types of crackers for the presence or absence of starch and of reducing sugars. Also‚ to test the chewed cracker‚ the one that didn’t have a reducing sugar‚ for the presence or absence of a reducing sugar with the saliva in it. Adding on‚ another part of the objective is to determine the effect of amylase on starch. For the Chemical Aspects lab‚ the objectives were to test for the presence
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Tennessee School Improvement Planning Process (TSIPP) SIP Templates Hillcrest High School 4184 Graceland Drive Memphis‚ TN 38116 School Year 2009-2010 Memphis City Schools Dr. Kriner Cash‚ Superintendent Principal: Gary P. Hannah Tennessee Department of Education Commissioner Lana C. Seivers October 2011 Tennessee School Improvement Planning Process (TSIPP) Assurances with Signature of Principal I‚ Gary P. Hannah ‚ the proud principal of Hillcrest High School “Home of the Mighty Vikings”
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Purpose: To determine the reaction order with respect to crystal violet dye. Procedure: Turn on a Spectronic 20 and warm it up for at least 15 minutes. Be sure the wavelength is set to 540nm. When the instrument has warmed up‚ use a clean small test tube from the drawer filled 2/3 with the first NaOH solution that is planned to use‚ as a blank set 0% and 100% transmittance. Take a %T reading every minute for at least 15 minutes so it may be convenient to wait until the room clock’s second
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Yams belong to the family of starchy vegetables‚ along with potatoes‚ sweet potatoes‚ taro‚ yucca and other root vegetables. Ube yams have the distinction of having of a purple or lavender color. In the Philippines‚ the natural sweetness of the ube yam is often used in desserts such as cakes‚ pastries and ice cream. Also called purple yam‚ the ube yam appears in cuisines around the world. The nutrition profile of an ube yam is similar to that of a regular yam. Calories Yams have an average 158
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DNA Extraction from Wheat Germ and Making an Agarose Gel AIM: To be able to make and agarose gel and perform gel electrophoresis in six different dyes. Also‚ to extract DNA from wheat germ. INTRODUCTION: Agarose gel is a substance that is used in science for gel electrophoresis and size exclusion chromatography. These processes use agarose gel to separate and analyze proteins and DNA. The medium is composed of a purified agarose powder that has been boiled in a buffer solution and then cooled
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Abstract In food industry such as the production of cheese‚ bacteria takes a significant role on the wide variety of cheese. Lactic acid bacteria(LAB)‚ a bacteria that can be found in the production of cheese‚ its stress gene was investigated in the experiment by using various biochemical and genetic techniques to identify and extract. The characterisation of the strain illustrates how identification of strains differ using different methods‚ such as gram stain and 16s rRNA screening. After
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of the specialized underlying structures of these life-forms. In order for us to appreciate these special adaptation‚ we first need to know how a typical plant or an animal cell organelle behaves in different water and solute concentrations. In this lab‚ we will determine the effects of hypertonic‚ isotonic and hypotonic solutions on plant and animal cells. In general when an animals cell’s placed in hypertonic solution it shrivels; a plant cell on the other hand undergoes plasmolysis. When an animal
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must you use lead pencil‚ instead of a pen‚ to mark your chromatography paper? A lead pencil should be used instead of a pen because the ink of the pen would dissolve in the eluting solution and separate. The components of the ink could mix with the other ink/ dyes that would be tested on the same chromatogram. Thus‚ a lead pencil should be used. 2. Why should you avoid touching the surface of the paper to be used for amino-acid chromatography? We should avoid touching the surface of the chromatogram
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