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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This Chip Can Tell If You’ve Been Poisoned Quick detection. This 2-cm-wide chip (inset) can quickly test for botulism‚ a deadly disease caused by theClostridium botulinum bacterium. When you are dealing with a deadly poison that can be found in food and is a potential terrorist weapon‚ you want the best detection tools you can get. Now‚ researchers in France have demonstrated an improved method to detect the most deadly variant of the botulinum neurotoxin‚ which causes botulism. Their test
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GROWN-UP’S ARE A DIFFERENT SPECIES Understanding grown-up’s is never easy. They hold on to things that were. They wonder what’s to come... and then they think they know everything just because they have experience! Really!! Antoine de Saint said: “Grown-ups never understand anything for themselves‚ and it’s tiresome for children to be forever explaining things to them”. For example: Have you ever seen a grown-up just after they got a new cell phone? They’re too scared to explore the menu options
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The Tomb of the Unknown Soldier is a practice utilized throughout the world to memorialize soldiers who have died in modern wars without being identified. The first monument of this kind was the Tomb of Unknown Soldiers in Frederica‚ Denmark (1858)‚ which memorialized unknown soldiers who died in the First War of Schleswig. Another such Tomb of the Unknown Soldier is found in Philadelphia‚ Pennsylvania and was erected in 1866 to honor those soldiers who died during the American Civil War. The history
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are various electronic commerce activities and mechanisms. E-Commerce Activities and Mechanisms include the following but not limited to: E-Market Place: It is an online market usually B2B where buyers and sellers exchange goods or services. EC transactions take place in the electronic equivalent of a mall called the electronic marketplace (e-marketplace). Electronic marketplaces utilize different tools (electronic shopping cart‚ e-catalog‚ fulfillment technologies‚ and checkout and payment
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Endangered Species Endangered species is a broad issue‚ one that involves the habitats and environments where species reside and intermingle with one another. Some measures are being taken to help specific cases of endangerment‚ but the question I have is should the Endangered Species Act be strengthened. The universal problem cannot be fixed until us as humans protect the natural environments where endangered species live. The Endangered Species Act of 1973 is one of the most popular and successful
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P.M.S. RENUGA‚ M.A.‚ M.PHIL‚ (Ph.D) LECTURER‚ JAY SHRIRAM GROUP OF INSTITUTIONS‚ 61‚ GURUNATHA GOUNDER STREET‚ TIRUPUR-4 99948-40111 Protecting the Endangered Species: Marine Awareness in Tim Winton’s Shallows The earth is surrounded by two-third of water in the form of oceans‚ lakes‚ rivers‚ seas and ponds. The oceans are blessed with an amazing diversity of marine mammals. Today‚ the marine mammals face threats because of man’s greed. We believe that the first creature created
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Bacteria Classification By Gram Staining THE AMERICAN UNIVERSITY IN CAIRO BIOLOGY DEPARTMENT SCIENCE 453 : BIOLOGY FOR ENGINEERS REPORT No.1 Presented By : Karim A. Zaklama 92-1509 Sci. 453-01 24/2/96 Objective: To test a sample of laboratory prepared bacteria and categorise it according to Christian’s gram positive and gram negative classes and also by viewing it under a high powered microscope and oil immersions; classify its shape and note any special characteristics. Introduction: Bacteria
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There are many different types of invasive species around the world‚ that vary in all shapes and sizes and things. What is an invasive species.? An invasive species is a plant‚ fungus‚ or animal species that is not native to a specific location (an introduced species)‚ and which has a tendency to spread to a degree believed to cause damage to the environment‚ human economy or human health. The Burmese Python The Burmese Python is a large reptile (snake) that can grow up to 20 ft in length and
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LAB #3 TITLE: SPECIES DIVERSITY AIM: To determine how moisture content of sand influences the distribution of fauna along a sandy beach. MATERIALS: 100m transect‚1m x 1m quadrat‚shovel‚30cm ruler‚40cm x40cm sieve‚ digital probe‚ sweep net PROCEDURE: 1. The area was selected for the 100m transect to be laid. 2. The transect was carefully placed ensuring that the end of the transect was in the moist part of sand. 3. The quadrat was placed along the transect on either sides. 4
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