In this lab‚ we were able to determine measuring the pH of liquids work. We were able to compare the liquids based on their pH level and determine which liquid was acidic or basic. Our results showed that if something came out to be seven or less‚ according to the pH scale‚ it means that an acid is a substance that donates hydrogen ions. Because of this‚ when an acid is dissolved in water‚ the balance between hydrogen ions and hydroxide ions is shifted. Now there are more hydrogen ions than hydroxide
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2:05 P.M. Purpose: The purpose of the experiment is to measure the densities of liquids. Specifically‚ the two liquids that were used and measured in the research were deionized water (H2O) and alcohol (C2H5OH). Methods: Density is an intensive quantity that cannot be visually identified. Therefore‚ the most straightforward approach to this problem was to record the measurements of mass and volume. For volume of each liquid‚ the instruments used were a 50ml burette‚ a 50ml graduated cylinder and a 10ml
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Crazy Crystal Creations: How to Grow the Best and the Largest Crystals Materials and Equipment * Lab notebook * Large bowl * Ice‚ enough to fill large bowl at least three times * Water * Thermometer * String * Scissors * Pencils (3) * Identical jars or large drinking glasses (3) * Pot with a lid * Borax (also called 20-Mule Team household cleaner); * Tablespoon * Plastic wrap‚ wax paper‚ or aluminum foil * Gloves‚ latex or similar style exam
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CHEMICAL EFFECTS OF ELECTRIC CURRENT Conductivity of Liquid Electrolysis Electroplating www.excellup.com ©2009 send your queries to enquiry@excellup.com Finish Line & Beyond The materials‚ which allow electric current to pass through them‚ are good conductors of electricity. On the other hand‚ materials‚ which do not allow electric current to pass through them easily‚ are poor conductors of electricity. You know that metals such as copper and aluminum conduct electricity whereas materials
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trade influenced all the aspects of the white Americans and African Americans’ life in the 18th century because it became the significant social and economic phenomenon in the history of the country (Dramaturgy Packet 2015‚ 17-18). In her play The Liquid Plain‚ Naomi Wallace discussed the idea of the transatlantic slave trade from the personal perspective of several characters in a vivid metaphorical language (Wallace 2013‚ 54). Thus‚ the concept of “vastness” of the transatlantic slave trade is
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Global LED Display Market 2014-2018 A Light-emitting Diode (LED) is a semiconductor light source and its applications range from lighting in houses‚ commercial spaces‚ and offices‚ to backlighting in TVs‚ smartphones‚ and tablets‚ to headlights in vehicles. LEDs became popular because of their low cost and higher energy efficiency; they offer savings of around up to 40 percent of energy as compared to other options. Covered in this Report This report covers the present scenario and the growth
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seeding during ultrasound-enhanced deracemization. We theorized that by introducing larger seed crystals to the system after the establishment of the monodispersed sized crystals (~2 hours)‚ we would broaden the crystal size distribution and thus allow the deracemization process to resume. To test this idea we performed seeded experiments using ultrasound‚ in which we introduced 2.5 g of large seed crystals (~200 µm‚ e_0= 40%) after sampling of the 2nd hour. Obviously‚ the addition of extra mass of
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Title: Liquid Chromatography Author: Gloria Contreras Lab Partner: Jose Montanez Instructor: Teresa Potter Date Work Performed: January 13‚ 2015 Date Submitted: January 20‚ 2015 Abstract: In this lab‚ liquid chromatography is used to separate the Red 40 and Blue 1 dyes inside of grape flavored Kool-Aid. It was determined that the 5% isopropanol will remove the Red 40 dye from the stationary phase. The 28% isopropanol will remove the Blue 1 dye from the stationary phase. The more
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Discuss two or more explanations of group displays as an adaptive response Individuals act differently in a group to when they are on their own. Group displays may be an adaptive response for individuals within the group. An example of group displays is lynch mobs. A lynch mob is a group of people who kill people for a presumed offence‚ without legal authority. In the 19th century over 3‚000 lynchings of black people occurred in the USA‚ due to a number of different reasons. One proposed explanation
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DRY ICE Introduction The topic I have chosen to write this report on is dry ice (also known as liquid nitrogen). This topic has quite an interest to me in a sense that I am curious about the dry ice as a whole. I have seen it being used but always thought about the manufacturing behind it. I am hopeful in finding out information such as what exactly dry ice is‚ how the dry ice is made/formed‚ what it has use for‚ and who was behind the making or discovery of dry ice. Some questions that I
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