Economic Indicators Essay

and neutralized each other. Neutralization between a strong acid and base such as HCl and NaOH will result in a solution with a pH of 7.0. If the final solution does not have a pH of 7.0 errors that might have occurred include misjudging of color indicator, using a contaminated

with a higher pH. Acids and bases with high concentrations result in large changes in pH, while acids and bases with low concentrations result in smaller changes in pH. 1. The titration curve would stop at the equivalence point. This is because the indicator changes the solutions colour at this point. 2. In order to titrate with antacids (solid

The purpose of this lab is to identify the most effective and affordable antacid using vinegar to represent acidity in the stomach. Original Procedure Test the pH of the vinegar and each antacid. Place 5 drops of each antacid on the wax paper and mix in 5 drops of vinegar in each. Test the pH of the mixture. When we got the same results for all three mixtures (pH: 4), we decided to modify our procedure. Modified Procedure Instead of mixing a few drops of each substance, we decided to mix 5

land ecosystems is abiotic indicators, biological indicators, and atmospheric indicators. Abiotic indicators can include pH, moisture,and temperature. Soil temperature and moisture are important environmental factors that affect the conservation and physiology of earthworms (M.L. Presley et al, 1996). Biological indicators can include earthworms, plants, and leaf litter. Atmospheric indicators include carbon dioxide emissions. Interactions among these three indicators can also help to assess if the

measured volume of a solution with known concentration until the reaction of both is complete. Materials * Computer Pre-lab 1. How will you know when your titration is finished? I will know that the titration is finished when the color of the indicator changes, meaning that the equivalence point has been reached. 2. Draw and label the pH scale below with acid, base,

Regina Preis (201640153) Aleksandra Ziembinska (201646248) Craig Bamford (201513488) Sofia Sonia Chrysochoou (201647422) CL218 Laboratory 4: Acids and Bases Introduction Concrete is a unique and extensive conducive construction material by virtue of its excellent compressive strength. Structures and structural elements made of concrete must therefore also be able to withstand chemically attacking substances, which are constantly acting on them because this affects the concrete strength. This

Introduction Acid rain has many negative effects in our world that include acidification of lakes and streams that kill fish, damage ecosystems, damages high trees, decays building materials, and many paints of buildings (EPA). Acid rain is caused by both natural resources as well as man-made sources and is measured on the “pH scale that expresses the acidity of a solution. The major pollutants emitted that cause acid rain are from burning coal-containing sulfur that is converted into sulfuric

Abstract: Balanced Scorecard (BSC) is considered as an important system to measure the performance, however, it suffers from some difficulties, particularly in the implementation phase, which may reduce its benefits. This paper aims to review the literature to have evidence about BSC model implementation challenges also review literature related to Big Data technology applications in the field of accounting and management so I conclude that Big Data technology can strongly contribute to

Purpose: To discover and observe what happens inside a ziplock bag when three substances are mixed together. Hypothesis: When the amount of baking soda added is changed, the amount of gas produced will change because baking soda creates gas. Meaning when the three substances are mixed, there will be more gas. Materials: 3 Zip lock bags Spoon Goggles Small test tube Bromothymol blue Citric acid Baking soda Beaker Water (Control) Procedure: Carefully measure 1 ½ level scoops of citric acid and

digestion of lipids in the milk. When lipids are broken down in to fatty acids and glycerol (see below), the acid lowers the pH of the mixture. To help me determine and measure the digestion of lipids, a pH indicator phenolphthalein has been used to measure the pH of the mixtures. The pH indicator will change the colour from pink to either white (if bile is not contained) or brown (if bile is contained), this will indicate that the solution is changing from alkaline to acidic. So if I want to use phenolphthalein