photosynthesis. Problem What is the relationship between light intensity and the rate of photosynthesis? Pre-Lab Discussion Read the entire investigation. Then‚ work with a partner to answer the following questions. 1. What are the variables in this experiment? Identify the manipulated and responding variables and two controlled variables. The manipulated variable is light intensity. The responding variable is pH. Controlled variables include the initial pH‚ the size of the plant sprigs‚ and time
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to determine the solubility constant of calcium hydroxide. But‚ there are few limitations in solubility constant concept‚ like the Diverse Ion effect and the Common ion effect. Sources of error probably were the assumptions made throughout the experiment and can be explained further by the limitations of the solubility constant. ------------------------------------------------- ------------------------------------------------- Introduction In a reaction where a slightly soluble ionic solid
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which we will be doing in this particular experiment. Purpose Measure the melting points of pure benzoic acid and pure mandelic acid. Determine the eutectic composition and eutectic temperature of benzoic acid-mandelic acid mixtures. Indentify an unknown compound using mixture melting points. Introduction Energy is needed to be applied to a solid compound in order to changes its state point of a compound. The actual purpose of the experiment is to determine the measurement and the melting
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nerve consists of more than one neuron‚ therefore increasing the voltage increases the number of neurons that are stimulated causing depolarization of most of the neurons 6. If you were to spend a lot of time studying nerve physiology in the laboratory‚ what type of stimulus would use‚ and why? If I spent time studying nerve physiology in a lab‚ I would use electrical stimulus. Using electrical stimulus 7. Why does the addition of sodium chloride elicit and action potential? The addition
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staff‚ visitors‚ patients‚ clients and contractors. Many activities are undertaken in clinical laboratories therefore anyone entering is at risk at pathological specimen. Staff must observe important precautions to protect both themselves and others. The degree of risk will depend upon the sort of work they do and how well they observe the safety rules. Infection control is very important in laboratories because infections may be acquired by breathing in airborne droplets or dust containing infectious
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or allergy medicines. When illicitly produced‚ methamphetamine is commonly made by the reduction of ephedrine or pseudoephedrine. The maximum conversion rate for ephedrine and pseudoephedrine is 92%‚ although typically‚ illicit methamphetamine laboratories convert at a rate of 50% to 75%. Methamphetamine has been reported to occur naturally in Acacia berlandieri‚ and possibly Acacia rigidula‚ trees that grow in West Texas. Methamphetamine and regular amphetamine were long thought to be strictly
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ALCOHOLS Alcohols are compounds in which one or more hydrogen atoms in an alkane have been replaced by an -OH group. For the purposes of UK A level‚ we will only look at compounds containing one -OH group. For example: Primary alcohols In a primary (1°) alcohol‚ the carbon which carries the -OH group is only attached to one alkyl group Some examples of primary alcohols include: Secondary alcohols In a secondary (2°) alcohol‚ the carbon with the -OH group attached is joined directly to
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Nucleophilic Substitution Reactions of Alkyl Halides 1. Summary of Experiment In this experiment we will be comparing the both SN1 and SN2 reactions using various compounds and sodium iodide and silver nitrate. We will be comparing the nature of the leaving group (Cl vs Br) in the 1-halobutanes as well as the effect of the structure
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objective and independent manner‚ the client organization to identify management problems‚ analyze such problems‚ recommend solutions to these problems‚ and help‚ when requested‚ in the implementation of solutions. Problem Description: A company Zee Laboratories Ltd. aims to come among top three pharmaceutical companies of India by 2020. The company is not only looking at domestic business‚ but its global dream is to be a world’s major company and the company is trying to achieve its aim by pursuing a
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1.0 The definition and explanation of ethical principles in the pathology laboratory Ethics is defined by moral philosophy and study of what is right‚ fair‚ just and good: about what should be done‚ not just what is most acceptable or expedient (ref). The four principles of ethics are autonomy‚ non-maleficence‚ beneficence and justice. In this report the ethical principle of non-maleficence‚ where the health care practices and obligations are to do no willful harm‚ execute no negligence or malpractice
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