Crystallization: Lab Report Theory/Introduction The purpose of this lab is to understand the concept of purification through crystallization. Crystallization is the process of purifying a substance‚ with the most adequate solvent. The process of crystallization came to be based on the principle of solubility. First‚ we must choose a solvent. The solvent is crucial to crystallization because it’s what will allow impurities to dissolve. Therefore‚ when selecting a solvent it is important that it
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conducted our experiment‚ we hypothesized that the natural light environment would be the best place for frond growth. After observing the cups from all of the different light environments‚ we conclude that the fitting environment for the duckweed is natural light but it doesn’t thrive in natural light but it lives linger compared to the other duckweeds in different amounts of light considering the fact that it had the most number of living duckweed
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cannot survive where the air is polluted and toxins loom. This is because they have no stomata‚ or pores‚ to shut to keep the toxins out; therefore‚ absorbing all of the pollutants in the air. Because they are such unique organisms‚ they accumulate different metal anions in the air than other organisms‚ like plants do‚ for example. Lichens attract toxic metal ions. An ion is a charged atom. If the ion has a positive charge‚ it is a cation. An ion with a negative charge is an anion. During the ion exchange
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diameter = 110mm and thickness = 30mm. • Two chucks; one steel rod; one stopwatch. Procedure : 1. The diameter of the provided rod is measured at three different locations to get the average diameter of the rod. 2. The anchor is chucked tightly to the solid circular disk. 3. The length of the rod or the distance between the two chucks is initially kept 30cm. 4. The disk is displaced slightly
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Separating Substances: Identifying Food Dyes with TLC Background The color of food is an integral part of our culture and enjoyment of life. Who would deny the mouth-watering appeal of a deep-pink strawberry ice cream on a hot summer’s day or a golden Thanksgiving turkey garnished with fresh green parsley? Even early civilizations such as the Romans recognized that people "eat with their eyes" as well as their palates. Saffron and other spices were often used to provide a rich yellow color
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Make sure that there are no problems with your lab that could affect the results before you turn on the light source‚ for example‚ a broken beaker or light source. 12. Make a table to record your results from the lab with. Make the table 4 columns wide‚ mark the first column with “Time”. Mark the second column with “number of floating chads in beaker #1”. Mark the third column with
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Lab Report Enzymes (must be typed) Name: Amanda Gallegos Date: 2/15/15 Section: BIOL 101GL What is the Hypothesis of this experiment? (3 points) -The highest temperature will affect the reaction rate of enzymes. What is the dependent variable? (1 point) -Change of rate/product/color/absorbency. What is the independent variable? (1 pt) -The temperature. Explain in detail the procedure that you followed (including amount of substrate‚ enzyme etc‚ and the whole procedure including incubation times)
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BioLab3 Lab Report 5 Enzymes Student Name: Cooper Lyon I. Enzyme Structure and Function EXERCISE 1 – Preparation of an enzyme activity standard At five minute intervals over the next fifteen minute period‚ record the color intensity of the solution of each test tube. Time (min) Tube S1 Potato Extract + Catechol Tube S2 Potato Extract + Water Tube S3 Catechol + Water 0 Shade of Yellow Clear/Milky Clear/Milky 5 Shade of Yellow Clear/Milky Clear/Milky 10 Orange Clear/Milky Clear/Milky 15
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CASE STUDY SCOPING – CRADDOCK CUP Background: The Craddock Cup is a regional soccer tournament held by the Craddock Youth Soccer League (CYSL) and managed by Joe Rivaldo every year. The cup brings in around 32 premier high school soccer teams (both boys and girls teams) from throughout the region to compete. Each year the cup is considered a great success by players‚ their families and the local community and is now widely considered as the premier tournament for high school soccer players. Over
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The Difficulty Limited/Extensive choices pose: Its Effect on motivation and Satisfaction The Difficulty Limited and Extensive choices pose: Its Effect on motivation and Satisfaction Teagan. R. Donnelly 214282075 HPS121 Psychology B: Individual and Social Development The Difficulty Limited/Extensive choices pose: Its Effect on motivation and Satisfaction Abstract The conducted study is based on personal choice in limited and extensive choice experimental
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