Abstract By using acid-base titration‚ we determined the suitability of phenolphthalein and methyl red as acid base indicators. We found that the equivalence point of the titration of hydrochloric acid with sodium hydroxide was not within the ph range of phenolphthalein’s color range. The titration of acetic acid with sodium hydroxide resulted in an equivalence point out of the range of methyl red. And the titration of ammonia with hydrochloric acid had an equivalence point that was also out of
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The identification of acids and bases using a natural indicator Purpose: The purpose of this lab practice is to identify the pH of certain solutions and if they are acids or bases. Introduction: In chemistry‚ pH is a measure of the activity of the (solvated) hydrogen ion. p[H]‚ which measures the hydrogen ion concentration‚ is closely related to‚ and is often written as‚ pH. Depending on the pH solutions will be acids or bases. An acid is a chemical compound that dissociates in solution‚ releasing
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Acid Base Titration bre’ana March 1‚ 2013 Purpose: The purpose of this experiment is to determine the concentration of a solution of NaOH by titration with a standard solution of HCl. It was also the purpose to determine the concentration of a sample of white vinegar by titration with a standard solution of NaOH. Introduction: Using the method of titration is how the experiment gets to the conclusion of the concentration of a solution. When doing this experiment‚ measurement is very important
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New Military Base There are many types of military bases; some have piers for ships and submarines‚ others have air strips for planes and others provide training for military members. A new military installation can provide employment opportunities for community members. A military base can increase the revenue generated by local businesses‚ create job opportunities for locals and even add revenue to our local government. A military base will be a good addition to the community. A new
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Axia College Material Worksheet 4 Hum 130 Week 3 Exercise: Buddhism Worksheet Due Thursday in the Assignment Tab Using the readings in Chapter 5 answer the following questions concerning Buddhism. Complete the sentences: 1. The man who became known as Buddha was born approximately in the year _(a)__ and was originally named __(b)__ by his family. a. Fifth century BCE b.Siddhartha 2. Describe the lifestyle that he grew up in (Response should be 10 words minimum). He was
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10 Diet and Exercise Tips from Athletes Whether you’re ramping up your diet and exercise for bikini season‚ or you just want to be as healthy as you can be‚ look no further - we’ve got a plan for you‚ courtesy of professional athletes like Olympic swimmer Natalie Coughlin‚ Olympic gymnast Shawn Johnson‚ pro boxer Cara Castronuova‚ and pro soccer player Leslie Osborne (and a must-read tip from Serena Williams). Your best bet for getting bikini ready in time for Summer? Thinking like a pro. Approach
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the durability and performance requirements for Soldiers. These guidelines provide the aesthetic requirements to ensure any authorized items maintain uniform standards for our Soldiers. The Army authorizes COTS boots as long as they are between 8 to 10 inches in height and made of tan rough side out cattlehide leather‚ with a plain toe‚ and with a soling system similar in color to the tan upper materials. The soling materials cannot exceed two inches in height‚ when measured from the bottom of the
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Chemistry Laboratory I Acid Base Review Definition In general‚ an acid is a substance that can donate a proton (H+) and a base is a substance that can accept a proton. Any proton in an organic molecule can potentially be donated. The most acidic proton in a molecule would be donated first. Any lone pair in an organic molecule can act as the proton acceptor. An acid (HA) reacts with a base (in this case H2O) to form the conjugate base of the acid (A-) and the conjugate acid of the base (H3O+). HA + H2O
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by everyday pollution from houses‚ factories‚ cars‚ and etc. This is the concept of acid rain‚ which according to EPA.gov is a broad term referring to a mixture of wet and dry deposition from the atmosphere containing higher than normal amounts of nitric and sulfuric acids. Acid rain isn’t just rain‚ its forms like hail or snow‚ which is wet deposition‚ and smoke or dust‚ which is dry deposition. The effects of acid rain are quite terrifying bringing all types of problems to the Earth‚ for example
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