Ammonia and Hydrochloric Acid Lab Chemistry 1 Abstract The straw should be cut shorter to 8 cm in order to make the solid ring appear in the center of the straw. We achieved our goal‚ cutting the straw caused the gases to not have to go as far‚ and meet in the middle. Background The particles in a gas are very loose and tend to move around a lot very quickly. The particles in a solid are very compact and vibrate but don’t really move very much. The particles in a liquid however are more
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In this lab we will look at how molecules move across the membrane of a cell . Osmosis is the movement of water across a cell membrane.In osmosis the cell membrane is selectively permeable‚which allows for the membrane to control what types of substances that passes through.Transportation can either be passive or active.Passive transport does not require the use of added energy where as active transport requires the cell to use energy. Diffusion is the simplest form of passive transport. Using
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Geometrical Optics: Snell’s Law PHY101 Lab 12 Date: July 23rd‚ 2012 Objective: The purpose of this laboratory activity is to develop a set of experimental procedures that answer questions regarding Snell’s Law and the index of refraction. Ultimately‚ the experimental procedures you develop will allow the index of refraction to be found for water and cooking oil. 1. Explain how to experimentally determine the index of refraction of two substances. 2. Develop a set of experimental
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Urinalysis Laszlo Vass‚ Ed.D. Version 42-0026-00-01 Lab RepoRt assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable
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Jasmin Kenjar NT1110 LAB 3.1 July 14‚ 2015 Lab 3.1: Exploring the Motherboard and Buses TASK 1: (2.) LGA 1156 used with the Intel Celeron‚ Intel Pentium‚ Intel Core i3‚ Intel Core i5‚ Intel Core i7 and Intel Xeon processors. The processors integrate the features traditionally located on a northbridge within the processor itself. The LGA 1156 socket allows these following connections to be made from the processor to the rest of the system: PCI-Express 2.0 ×16 for communications with a graphics card
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Nervous System lab was designed to measure reaction times by using a variety of tests that affect the heart rate. These tests were the startle‚ stroop‚ Valsalva maneuver‚ diving reflex‚ and a test of our choice. The test our group chose to measure the heart rate in response to doing a trust fall to anticipate the stress right before the fall. To begin this lab we chose a participant‚ and then hooked their finger up to the pulse transducer sensor. Using the chart 5 program on the lab computer the participant’s
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B. VARIABLES 1. The independent variable in this lab is the molarity of sucrose each dialysis bag is filled with. The time (30 minutes)‚ the temperature (23C) and the type of dialysis tubing used are all constants. 2. The dependent variable is the final mass of the dialysis bag. 3. The control in the experiment is distilled water‚ as it does not contain sucrose solution. C. MATERIALS NEEDED 4. Five 30 cm strips of dialysis tubing 5. Five clear
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Homeostasis Lab: The Effects of Exercise on Homeostasis Lab Write Up Introduction: The purpose of this lab is to discover the effect that various levels of exercise have on specific body parameters such as heart rate‚ body temperature‚ perspiration level‚ body color‚ and breathing rate. Homeostasis will be monitored to calculate the change in such body parameters. To find this information the subject will exercise for a controlled periods of time. At each rest‚ the subject will be recorded upon
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Combustion Background For this science experiment‚ we will be looking at the differences in calorie count between a food label and and the amount we measure in a lab. For this lab‚ we will be experimentally measuring how many calories are in different types of food. Before we begin the lab however‚ we need to investigate the science behind it. Firstly‚ we need to figure out if this project is even possible. Luna Abdallah et al created an experiment making it possible. To measure the amount of calories
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(2012‚ February 6). Kaspersky Lab CEO backs out of IPO plan. Retrieved from‚ www.Techworld.com. Holt‚ Kris. (2012‚ May 15). Apple Makes Strong Showing in American Customer Satisfaction Index Debut. Retrieved from‚ www.tmcnet.com/topics/articles/2012/05/15/290472-apple-makes-strong-showing-american-customer-satisfaction-index.htm#ixzz1waQbDofn www. Jahangiri‚ Bonnie. (2008). The History of Ahmad Tea. Retrieved from‚ www.ehow.com. Kaspersky.com. (2012‚ March 23). Kaspersky Lab shows 864% growth in 5 year
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