Objective Determine the concentration of acetic acid of vinegar‚ in terms of (m/m). Introduction Neutralization is a reaction of an acid with a bases to produce a salt and water. For example‚ the reaction of the strong acid HCl with the strong base NaOH produces the salt sodium chloride and water HCl(aq) NaOH(aq) ( NaCl(aq) H2O(l) Since the acid‚ base‚ and salt in this reaction are all strong electrolytes‚ the net ionic equation for this reaction is H(aq) OH-(aq) ( H2O(l) This same result
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Bioassay of Radish Seeds Bioassay is a type of scientific experiment used in the development of new drugs and monitoring pollutants. It estimates the potency of a substance‚ by testing its effect on living matter. In other words‚ it determines how much of the substance is needed to poison an individual‚ without testing it on any humans or animals. From here the TC50 of the substance can be adjusted for dealing with humans and animals over plants. In this lab we attempted to find the potency of
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negative effects to the human body‚ it is a drug like substance‚ overuse of caffeine can lead to addiction. Just like many other drugs and drug like substances‚ Caffeine increases happiness and comfort. Caffeine also has some positive effects on the human body; it can lower the risk of having heart disease‚ diabetes‚ strokes‚ and cancer.
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THE ALLELOPHATIC EFFECT OF PLANTS Raluca Elena Hedes STRUCTURE: PART 1: Clarifying THEORETICAL CONCEPTS and TERMINOLOGY ¨ PART 2: Aspects of PRACTICAL APLICABILITY ¨ PART 3: SOURCES ¨ PART 4: Q&A ¨ The term allelopathy… ¨ ¨ • • 1937 – introduced by Prof. Hans Molisch Derived from the Greek words: Allelon = of each other Pathos = to suffer Definition ¨ 1996 - The International Allelopathy Society: “Any process involving secondary metabolites
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experiment was composed to show the effects that different colors of light have on plant growth. We separated our plants into different boxes and then covered the openings with colored cellophane. We conducted this experiment for approximately two weeks. Out of the colors blue‚ green‚ red‚ and yellow‚ the plant behind the blue cellophane grew the most. Research Problem What effects does different color light have on plant growth? Hypothesis The plants will grow taller under the red and blue
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Ginger(Zingiber officinalis) and Vinegar as Organic Insecticide BY: Aljon Tuyor Melchiville Joseal Diana Cuanan Elaine Castillo Mia Camille Decoy Lessette Ivan Rosas Introduction Toxic chemical is any substance which may be harmful to the environment or hazardous to your health if inhaled ingested or absorbed through the skin. Organic pesticides are just as strong as other forms of insect and weed control
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Determining the Molarity of Acetic Acid in Vinegar Abstract This experiment was done to determine the molarity of acetic acid in vinegar. The acetic acid in vinegar was titrated with a strong base sodium hydroxide to determine the equivalence point of this chemical reaction. The indicator phenolphthalein was used because the moment it changes color is on the basic side of the pH scale. To insure the experiment was done with the most accuracy‚ the two conductors of this experiment took three
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Major Pollutant: Ammonia Ammonia is one of the most widely produced chemicals in the United States. In pure form‚ it is known as anhydrous ammonia. Ammonia has the formula NH3 which is a compound of hydrogen and nitrogen. Ammonia is also produced in the human body and is commonly found in nature. It is essential in the body as a building block for making proteins and other complex molecules. In nature‚ ammonia occurs in soil from bacterial processes. It is also produced when plants‚ animals and
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It was evident since the start of the lap that the big question was‚ how does temperature affect radish germination. The original hypothesis was if temperature affects the tail length of the germinated seed‚ then a higher temperature will lead to a significant decrease in the tail length of the germinated seed. This hypothesis is true‚ according to the collected data. After 6 days of letting the seeds germinate‚ the ones that germinated in room temperature were quicker to germinate and with a lot
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Process: Ammonia for Food and Bombs From: Eros Wang To: Ms. Irumekhai Date: March 30‚ 2012 1. Suggest five factors that could affect the production of ammonia in the Haber process. Explain the effect of each factor‚ using rate theory. The Haber process itself is a delicate balancing act because of all the factors that affect the yield of ammonia. In the Haber process‚ the nitrogen‚ hydrogen and ammonia are in equilibrium. So five factors that affect the production of ammonia would
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