Investigation of the point of incipient plasmolysis of onion cells (Allium cepa) using NaCl (Sodium Chloride) concentrations of 0.1M‚ 0.2M‚ 0.3M‚ 0.4M‚ 0.5M‚ 0.6M Design Research Question (Aim): The aim of this lab was to determine the point of incipient plasmolysis of onion (Allium cepa) cells using Sodium Chloride (NaCl) concentrations of 0.1M‚ 0.2M‚ 0.3M‚ 0.4M‚ 0.5M‚ 0.6M. Hypothesis: When the water concentration of a solution outside the cell is lower than the concentration inside the cell
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Raghed Odeh Chem 227 11/01/2017 Using Conductivity to Find an Equivalence Point Provide a brief statement of the purpose of this activity. Be sure to define equivalence point. Explain conductivity and the idea behind why conductivity can be used in determining the equivalence point in a titration. The purpose of this experiment was to use the conductivity to find the equivalence point. The equivalence point is the point in a titration where the amount of titrant added is enough to completely neutralize
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| | issue of equality in the distribution of income and wealth among households. | | | | budget deficits in the domestic economy and trade deficits in the international economy. | | Instructor Explanation: | Chapter 1. | | | | Points Received: | 1 of 1 | | Comments: | | | | 2. | Question : | (TCO 1) The basic economic problem is essentially one of deciding how to make the best use of | | | Student Answer: | | limited resources to satisfy limited economic wants
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turning point in the Revolutionary War because it gave the army a backbone‚ made the soldiers stronger for upcoming battles‚ and helped them win alliance with the French. It was here that the Continental Army was hopelessly drenched. After the battles they had fought‚ Valley Forge gave them another reason to give up. They arrived bloody‚ beaten‚ and war-torn. What would you expect from an army who went through these difficulties and yet‚ life throws them the winter of Valley Forge. To the point of giving
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per unit produced(x) The point of intersection on a graph of each function is called the break-even point. We can also find the break-even point using the Substitution Method. Suppose Dan’s Pizza Parlor has a fixed cost of $280 and it costs $4 to produce each pizza. Dan sells every pizza for $12. The Revenue Function is: R(x) = 12x The Cost Function is: C(x) = 280 + 4x The break-even point occurs where the graphs of C and R intersect. Therefore‚ we can find this point by solving the system: y
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“Point-of-Care Testing (POCT) is defined as tests designed to be used at or near the site where the patient is located‚ that do not require permanent dedicated space‚ and that are performed outside the physical facilities of the clinical laboratories” (Woodworth‚ Kirsch‚ & Sayers-Rana‚ 2012‚ p. 363). The results of the test are much faster than standard laboratory testing and treatment can be delivered in a timely manor. In addition‚ the results of the testing are immediately connected with the
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The objective of this lab was to identify an unknown compound by determining the melting point range using fast and slow ramps. Also‚ to determine the eutectic point of Urea and Cinnamic Acid. An unknown compound that was numbered 8 was chosen. A small amount of the unknown compound was placed in a weighing paper using a spatula. The weighing paper was folded in half twice and then was grinded using a spatula. After the unknown compound was grinded about 1-2mm was added into a capillary tube. A
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#2: How does point of view in “Cathedral” determine the plot? What it means to “see” another frequently depends on the maturity level of the viewer. This point is powerfully made by Raymond Carver in his short story “Cathedral” about a man who is navigating life “blind”‚ despite having normal vision. Carver tells his story using the husband’s point of view as the husband meets his wife’s long time friend‚ Robert‚ a man who ‚ despite being physically blind‚ sees life clearly. The point of view in
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and the little kid to get the mongoose out so he will leave and the snakes will be the king and queen of the garden. The claim how the point of view effects the story. How it dose that is the point of view. And how its in third person in the story well. Rikki Tikki Tavi they fight and the narrator know there feelings and emotions. In Rikki-tikki-tavi the point of view is third person and that effects the story because. The author know the thoughts and feelings of all of the animals and the people
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Calculated mass of the sinker in ounces 1.74g Part C 1. Length of the foil 8.5cm 2. Width of the foil 8.5cm 3. Mass of the foil .60g 4. Volume of the foil .222 5. Thickness of the foil .0031 Part D 1. Boiling point of the ethanol 65ºc Part E 1. T¹ initial temperature 125ºc 2. T² final temperature 155ºc Post lab questions: 1. Based on my temperature value and my lab measurements‚ I calculated that the water density would be 2.16 (g/mL). This calculation
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