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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Unique # 51070 The main purpose of the experiment involves two oxidation-reduction reactions to calculate the oxidizing capacity of a sample of unknown bleach. In order to determine the volume of Na2S2O3 added‚ students will conduct a titration of bleach with thiosulfate with addition of a starch indicator to find the end point of the titration. Moreover‚ the oxidizing capacity of bleach is calculated with the percentage by mass of NaOCl in the unknown bleach sample. The overall chemical reaction
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Chapter 11……….Contracts‚ Consideration‚ Capacity and Legality Consideration: Value given in return for a promise. Consideration must be (1) legally sufficient and (2) bargained for by the party receiving it. Legally sufficient consideration may take the form of: (1) promising to do something that the promisee has no prior legal duty to do (e.g.‚ promising to pay money for the promisor’s goods); Regular consideration (2) performing an action that the promisee is not otherwise obligated to
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Legal Intent A. DOMESTIC / SOCIAL AGREEMENTS: PRESUMPTION: THAT THE PARTIES DID NOT INTEND TO CREATE A LEGALLY ENFORCEABLE AGREEMENT - Domestic assumption applies in these circumstances: 1. HUSBAND and WIFE -- a) If living together in harmony at the time agreement made = Social presumption applied (Balfour v Balfour) [holiday - money agreement - later separated] BUT b) If separated at time agreement made = Social presumption rebutted [particularly
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The Vital Capacity Test In Football Physical Education Essay Football has become a sport that interest by all population in this world. To play or become a good football player‚ the person must master many skills and have a healthy physical and mental. Football players also must combine speed‚ strength‚ agility‚ power‚ and endurance as basic qualities before the individual skills inherent to the playing of soccer can be utilized and depend on the position such as defense‚ strikers‚ midfielder and
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Abstract It will be assessed whether working memory capacity (WMC) facilitates the use of emotion regulation strategies. A preceding study has shown that those with higher WMC successfully self-enhance in order to reduce negative affect compared to those with low WMC (Schmeichel & Demaree‚ 2010). To expand this literature‚ the present study will investigate if WMC facilitates the use of two different emotion regulating strategies. In the first part of the study‚ participants will be grouped based
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Thermodynamics-Enthalpy of Reaction and Hess’s Law Purpose To demonstrate the principle of Hess’s Law and to find the heat capacity of the coffee cup calorimeter using three different reactions. Data Tave = (46.4-45.2)/2 = 45.8 qwater = -(100g)(4.184)(46.56-45.8) = -318 J Ccal = 318J/(46.56-21.2) = -12.53J/g*C Tinitial = (27.1+23.8)/2 = 25.45 qrxn = -(100g)(4.18)(38.43-24.45)+(-12.53x12.98) =-5400J/.1mol(1J/1000kJ) = -54.0 kJ/mol Tinitial = (26.0-24.5)/2 qrxn =-(100g)(4
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Module 1: Lesson 5 ASSIGNMENT (12 marks) Lesson 5 Assignment Part 1: Molar Heat Calculations (3 marks) 1. Calculate the molar enthalpy of the NaOH(aq) using the data obtained from this experiment. Show all your work. Answer: Specific heat capacity: 4.19 J/g∙°C 50.0 ml of 1.0 mol/L NAOH Initial temperature: 23.9 °C Final temperature: 32.9 °C Change in temperature: 9 °C Q = mc∆t = (80g)(4.19 J/g∙°C)(9°C) = 3016.8 J or 3.0168 kJ ∆rH = n∆rHm 3.0168 kJ = (0.05
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Classis heat stroke usually affects sedentary elderly individuals‚ chronically ill persons‚ and young persons. Exertional heat stroke occurs more often in younger‚ healthy individuals who actively in strenuous physical activities . Classic heat stroke caused by exposure to particularly hot environment for a long periods of time. Exertional heat stroke caused by an intense activity in a hot environment. The symptoms of heat stroke include high body temperature‚ mental changes‚ for instance confusion
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The topic I have chosen to look at in this essay is to "discuss the principal ways in which heat is gained by and lost from the body‚ and explain the various mechanisms involved in regulation of body temperature. Briefly indicate how excessive cold and heat affect the body". The body gains and loses heat through the external environment by radiation‚ conduction‚ convection and evaporation of water. These are all physical mechanisms known to the human body. (Vander‚ Sherman & Luciano 1998). Radiation
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