A pH meter is an electronic device used for measuring the pH (acidity or alkalinity) of a liquid (though special probes are sometimes used to measure the pH of semi-solid substances). A typical pH meter consists of a special measuring probe (a glass electrode) connected to an electronic meter that measures and displays the pH reading. A colorimeter is a device used in colorimetry. In scientific fields the word generally refers to the device that measures the absorbance of particular wavelengths
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02072798 Bandaruk Mon-Wed 12:45 PH Balance in the Human Body As we all know every solution is either acid or alkaline. Alkaline is often called base. These solutions can be anything from body fluids‚ to fruits‚ vegetables‚ seawater‚ beverages you name it. Acid and alkaline is measured in pH. It starts as low as zero being very acidic and works its way up to fourteen being the most basic. The pH of our stomach is 2‚ obviously to digest food‚ wine is 3.5‚water is 7(neutral)‚ arterial blood is 7.4
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September 10th‚ 2013 EXPERIMENT 1 LEARNING BASIC OPERATIONS: THE EFFECT OF PH ON A FOOD PRESERVATIVE Purpose: The purpose of this experiment was to investigate a competitor’s claim that the food preservative‚ sodium benzoate (C6H5COONa)‚ made by Fresh Foods International (FFI)‚ changed into a new substance in stomach acid. Stomach acid has a pH between 1 and 3 due to the hydrochloric acid content. Based on the net equation given in the book as well as the solubility of the product our hypothesis
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IMPROVED ASSAY This essay aims to critically compare and contrast the community psychology and public health approaches to social problems. It is imperative however to first explain what these two concepts mean before executing on how they compare and differ from each other. It would also be of significance to know how these concepts where established. Definitions Community psychology is that branch of psychology concerned with how people relate to community and society‚ and according to this
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Determining the Optimal Temperature and PH of Barley Amylase Abstract The purpose of this experiment was to find the optimal temperature and pH of barley alpha-amylase. I hypothesize that the optimal temperature would be 55 degrees Celsius and the optimal pH would be 5.5. In this experiment‚ the starch is used as a substrate to examine the optimum temperature and pH for the reaction of alpha amylase. It is known that the measuring of disappearance (absorbance) of the substrate starch with iodine
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There are certain big questions that philosophers have been puzzling over for centuries. Amazingly‚ many people ask these same questions in daily life. Reflect on these questions as related to each of the 6 branches of philosophy below. Write an APA-formatted essay of 3–4 pages explaining each of the 6 branches‚ describing a time in your life when you have asked similar questions. Discuss the specific circumstances that brought you to each question‚ and your conclusions. The questions are as follows:
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Autonomy is a concept found in moral‚ political‚ and bioethical philosophy. Within these contexts‚ it is the capacity of a rational individual to make an informed‚ un-coerced decision. Beneficence is action that is done for the benefit of others. Beneficent actions can be taken to help prevent or remove harms or to simply improve the situation of others. Non-maleficence means to “do no harm.” Physicians must refrain from providing ineffective treatments or acting with malice toward patients
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Experiment 1 : Design and preparation of buffers effective at different pHs Abstract The body uses natural buffers to maintain the many different pH environments in our body. This is important for optimum activity of our enzymes. When doing experiments in vitro using these enzymes it is important to mimic intracellular conditions using artificial buffer systems in order to obtain accurate results. In this experiment the buffering properties of three artificial buffer systems containing acetic
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CHAPTER 7 The Summary of Findings‚ Conclusions and Recommendation Based on the information presented in this feasibility study‚ it is recommended that the oyster mushroom chips business be pursued. The findings of this feasibility study show that the proposed business did not suffer any losses in the first four years of their operations. Summary of Findings This part summarizes the findings that were garnered in the whole duration of the feasibility study. The Marketing Aspect 1. The business
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Week 7 Digestion Lecture Study Guide Based on information found in the lecture folder or other sources‚ answer the following questions. 1. What is digestion? Digestion is the mechanical and chemical breakdown of food into usable molecules 2. List some other names of the digestive tract. Alimentary Canal (GI Tract) 3. Explain where and how the mechanical breakdown of food occurs. Teeth begin digestion mechanically‚ Chewing (“mastication”) breaks apart food‚ 2 sets
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