Lab 1: Observation of Chemical Changes Name: Tyler Lee Lab Partners: none Date of Experiment: Feb 26 2015 Location: My House Course Number: CHE111 Abstract: The point of this lab was to test and observe chemical changes when mixing chemicals together and also through heating chemicals. Experiment and Observations: The experiment performed in the first part of this lab was to mix various chemical solutions together and then observe and record the chemical changes‚ also if a chemical
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Manual Testing Faq’s What is software testing? Software testing is the process used to help identify the correctness‚ completeness‚ security‚ and quality of developed computer software. Testing involves operation of a system or application under controlled conditions and evaluating the results. Controlled conditions should include both normal and abnormal Why Management some times not serious about testing? Solving problems is a high-visibility process; preventing problems is low-visibility
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volume‚ mass‚ length and temperature of a variety of items. Create dilution of sugar water. Data Tables and Observation: Fill out the data sheet (below) for the experiment and submit with this form. Recording data carefully and accurately is very important. Be sure to keep notes of experimental errors or difficulties during this experiment. Exercise 1 Length Measurements: For the measurement below carefully read the ruler to the best degree of accuracy. The reading you make in centimeters
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The Scientific Method Portland Community College Staff* Version 42-0207-00-01 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
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Math Practice Lab Pre-Lab Questions: 1. The rules concerning handling significant figures are as follows: When dividing/multiplying The answer has no more significant digits than the number with the fewest significant digits (the least precise figure). Round off after calculations have been performed. When adding/subtracting Answer has no more places than the addend‚ minuend‚ or subtrahend with the fewest number of decimal places. Significant figures are irrelevant when adding/subtracting
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Experiment 11: Fomite Transmission Wesley Webster Student ID# 000258005 Western Governors University MLT 1 Dr. Kim Shahi and Dr. Heidi Atkinson September 3‚2013 Experiment 11: Fomite Transmission Elements Necessary to Spread Infection There are three elements necessary for the spread of infection. First there has to be a source of an infective organism. This source can be endogenous or exogenous. Endogenous sources of infection reside on or in the host’s body
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Properties of Gases General Chemistry 1 Lab 5 Abstract: The purpose of this experiment is to examine the properties of several gasses‚ which were the products of a reaction‚ and examine the way the gasses react under certain conditions. These conditions‚ such as introducing a flame to the gas as well as oxygen and CO2‚ caused other reactions to occur. Hypothesis: If the gasses are correctly synthesized then there will be a clear reaction with the introduction of the flame‚ O2‚ CO2‚ Air
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ent chemicals are added to each other. Procedure This experiment involved placing drops of specified chemicals into a well on a 96well plate. Each well number was recorded along with question number and name of chemicals involved. Two drops of a chemical were placed in a well along with two drops of another chemical. Chemical reactions and color changes were recorded in Data Table 1. Observations During the experiments a few problems were encountered. One of the chemicals provided differed
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changes these chemicals undergo. I expect for each solution to react differently when mixed with acids and bases. Procedure: I have a well-plate-96‚ a piece of white and black paper‚ and the chemicals from the Observation of Chemical Changes Experiment Bag. I used a different well for each combination of solutions. I placed two drops of one chemical then two drops of a different chemical. Observation: NaHCO3 and HCl - Clear bubbles; bubbles did not fizz. HCl and BTB- Color changes to orange
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Exercise 11: Blood Analysis: Activity 1: Hematocrit Determination Lab Report Pre-lab Quiz Results You scored 75% by answering 3 out of 4 questions correctly. 1. Hematocrit Your answer : a. refers to the percentage of white blood cells (WBCs) in a sample of whole blood. Correct answer: b. of 40 means that 40% of the volume of blood consists of RBCs. 2. A buffy coat layer You correctly answered: d. is all of the above. 3. The diagnosis of anemia indicates You correctly answered: a. a lower-than-normal
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