1. Diffusion and Osmosis‚ June 4‚ 2013 2. Purpose: The purpose of this lab is to help give visual understanding of diffusion which is a solution of high concentration spontaneously (no energy required) moving to an area of low concentration. Also taking a look at osmosis‚ which is the movement of chemicals across the cell membrane. Osmosis requires some type of energy to be put in for this to happen. After these experiments we should have a better idea and visualization of how chemicals transfer
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Adeoti Taylor Chem2583 Organic Chemistry Laboratory Class ID:8622098 Organic Lab 2 2583-04 Instructor: Andy Szalkiewicz 9/30/2014 Recrystallization Objective/Abstract: The purpose of this lab is to purify solids contaminated by relatively small amount of impurities by a technique called Recrystallization. Compounds that have different solubility at different temperature usually can be recrystallized. Formulas and Structures: Benzoic Acid Methanol Percent Recovery: Indicates how much of the
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The Cold Equations This short story by Tom Godwin is a very sentimental and lesson learning story. Briefly‚ it is about a ship on a designated mission which encounters a problem because the pilot on the ship encounters a stowaway‚ a young girl‚ and every stowaway found on board must be jettisoned‚ it was the law and there was absolutely no appeal. Marilyn‚ the stowaway’s name‚ was simply a teen and all she wanted was to see her brother whom she hadn’t seen in over 10 years she really meant
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Colleen Doyle Lab report 4 Gender Roles John Tucker Must Die John Tucker Must Die is a movie about the classic stereotypical male athlete in high school. John Tucker is the star basketball player who is sexy‚ talented and good with his words. Every girl in high school wants to date John Tucker. With his reputation‚ John dates 3 girls at once. He dates such stereotypical girls including the cheerleader‚ the “slut”‚ and the smarty-pants. Because of his name‚ he gets away this. But‚ all of this
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Gabi Mejia Chem 101 Section ADF Lab 4: Weak Acid Unknown Procedure: When testing the acid‚ use only between 0.2 g and 0.3 g for each trial (get as precise a measurement as you can). The general procedure is to weigh out your acid‚ dissolve it in water‚ add a couple drops of the indicator (phenolphthalein)‚ and then add the sodium hydroxide until you note a color change (from clear to pink). When the color change occurs‚ you have added enough base to completely react with the acid (the endpoint).
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CHM130 Lab 4 Calorimetry Name: Conor Westerman Data Table: (12 points) ALUMINUM METAL Pre-weighed Aluminum metal -100 grams sample mass (mmetal) Temperature of boiling water and metal sample in the pot (Ti(metal)) 365k and 345k Temperature of cool water in the calorimeter prior to adding hot metal sample (Ti(water)) 364k Maximum Temperature of water/metal in calorimeter after mixing (Tf) 365k LEAD METAL Pre-weighed
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to Science. Read Lab 1: Introduction to Science. This lab includes several critical thinking activities introducing the scientific method‚ lab reporting‚ and data collection and management. Then‚ utilize this information to complete Exercise
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Assignment #2 Early Childhood Cognitive Development For this assignment‚ the student will use and apply knowledge of child development and learning‚ appropriate observation‚ and documentation and assessment to gain a fuller understanding of early childhood development as time is spent observing a child. NAEYC Standard 1: Promoting Child Development and Learning: 1a. Know and understand young children’s characteristics and needs 1c. Using developmental knowledge to create healthy‚ respectful
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Ridley College Grade 11 Physics Formal Lab Report By David Deng The Electromagnetic Force: An Equation Introduction This lab is to measure the determinant factors of the size of electromagnetic force that affect with electric and magnetic fields. The electromagnetic force is carried by the photon and is responsible for atomic structure‚ chemical reactions‚ the attractive and repulsive forces associated with electrical charge and magnetism‚ and all other electromagnetic phenomena. According
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Chapter 7: Intro to Sampling Distributions Sampling Error = x̄ - μ Z-Values for a sampling distribution of x̄ : Z = Z-Values adjusted with Finite Population Correction Applied if: the sample is large relative to the population (n is greater than 5% of N) and sampling Is without replacement Z = Using the Sampling Distribution for Means Compute the Sample Mean Define the sampling distribution μx̄ = Define the probability statement of interest P(z30 will give sampling distribution that
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