1.03 Scientific Method Kaylee Mellott August 23‚ 2013 Scenario 2: 1. The dependent variable is the rate of the growth of the plant and then the independent variable would be the time of day that she waters the plant. 2. Five variables that should be controlled during the experiment is the amount of sunlight‚ room temperature‚ amount of water‚ the time of day the plant is watered and the certain type of plant. To make sure the plants get the same amount of sunlight‚ make sure to put them both
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and Report: Introduction: The experiment was conducted to find the unknown molarity of HCL. The unknown molarity of HCL was found by the use of the titration method and then comparing the results between the titrant and analyte HCL solutions. Molarity is a concentration unit‚ it is defined by the number of moles the total volume of the solution. This experiment included a process called titration‚ used to work out the unknown concentration of a known substance. The process of titration is adding
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their abilities to develop and adjust to altering environments. That is why it is so significant to be competent to identify microorganisms. This study was conducted by applying techniques and experiments cultured in microbiology lab for the identification of the unknown microorganism. Introduction: Identification of bacteria is significant because they are not only beneficial but potentially hazardous as well. The identification of bacteria can lead to breakthroughs in healthcare regarding treatment
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an Unknown Compound Purpose: The purpose of this experiment was to separate a mixture of two or more unknown compounds and identify them based on their melting point and reactivity with an acid or a base. Compound studied/Reactions: The organic solvent used in this experiment was methyl t-butyl ether (MTBE‚ 2-methoxy-2-methylpropane). The unknown that dissolved in the MTBE‚ but was insoluble in water. MBTE is very volatile and flammable. It was determined in the experiment that the unknown was
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My journey to the unknown started about three weeks before the end of my microbiology class at Brunswick Community College. This journey started out with a media plate cultured with an unknown species of bacteria. I was then instructed by my professor to use all of my previous knowledge to identify the unknown bacterial pathogen. This lab led me to master my skills of using the Gram stain‚ testing for catalase‚ testing for coagulase and using the oxacillin screen. Now I am going to take you with
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deflection‚ we will be conducting controlled experiments of various beam materials and sizes and we will also be studying change of properties such as shape deflection and circular bending. This lab experiment report details our practical and theoretical experimentation with graphical aids and reasoning. DESCRIPTION OF THE EXPERIMENT We will set up the required tools and materials to experiment and study the deflection of a cantilever‚ simply supported
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task is‚ however‚ can be quite complex‚ as there are many ways by which one can identify a metal‚ each with varying amounts of accuracy. In order to test some of these methods‚ thermal expansion‚ density‚ and specific heat were used to identify two small metal rods. The overall purpose of this experiment was to identify an unknown metal using the three previously stated properties. This means that the percent error should be relatively low‚ meaning that there would be little difference between
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From an industrial point of view‚ the uniform distribution (i.e.‚ the gas distributed homogeneously over the entire cross-sectional area of the column) is essential to achieve optimal reactor performance. For instance‚ high quality and efficiency of the chemical reaction can only be achieved through homogenous gas holdup distribution along liquid phase as in bubble column or slurry phase (liquid-catalyst) in a slurry bubble column due to this homogenous gas holdup distribution lead to better interaction
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Instructional materials are items that are designed to serve as major tool for assisting in the instruction of a subject or course. These items may be available in bound‚ unbound‚ kit or package form and may consist of hard backed or soft backed textbooks‚ consumables‚ learning laborites‚ slides‚ films and film strips‚ recording‚ manipulative and it’s commonly to accepted instructional tools. And instructional method it’s the same with teaching method this are defined as the principles and methods used instruction
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Purpose: The purpose of this was to determine the concentration of sodium carbonate in an unknown sample by titration. The solution of hydrochloric acid was prepared and standardized using Na2CO3. Observations: Week 1: Standardizing hydrochloric acid using sodium carbonate with bromocresol green indicator Table 1: Titration of sodium carbonate using hydrochloric acid Trial | Mass of Na2CO3 (g) | Burette Reading (mL) | Final Volume of HCl (mL) | | | Initial | Final | | 1
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