Exercise 6: Acid-Base Titrations Nick Redmond Partner: Stephan Villavicencio Thurs. Section Lab date: March 19‚ 1998 Report date: April 6‚ 1998 Abstract: The equilibrium between acids and bases during a titration can be used to determine several characteristics of the acid or the base. Sodium hydroxide was standardized to 0.1035 M in three acid-base titrations of potassium hydrogen phthalate (KHP). This standardized NaOH solution was then used in a series of other titrations with acids in order
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NaOH Standardization and Titration of an Unknown Organic Acid Overview: Methods for counting the number of molecules in a sample is a major emphasis of laboratory work. In this experiment we will use the method of titration to count the number of acid molecules in a solution. Measuring mass is a relatively easy procedure to do in the lab (although a balance is expensive). Counting the number of particles requires more effort. Molecular counting can be done by setting an unknown amount of a substance
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+ 2 NH4+ + S2- Ag2S(s) + 2 NH4+ + 2 NO3- AP Chemistry Name _________________________________ Period ___ Date __/__/__ 4 Reactions in Aqueous Solution Acid-Base & Gas Forming Equations Solutions of Strong Acids & Strong Bases 1. Solutions of hydrochloric acid and barium hydroxide are mixed. 2 HCl + Ba(OH)2 BaCl2 + 2 H2O 2 H+ + 2 Cl-
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and is a strong acid. Where comparing to the conductivity of distilled water to HCL would be evidently HCL. This is because distilled water doesn’t contain ions‚ hence no movement of electrons‚ furthermore no conductivity. However since we added sodium chloride‚ distilled water will have some conductivity but no where near the amount of HCL. Comparing to the conductivity of vinegar to HCL mostly relays on how acidic each other are. Since HCL is a strong acid and vinegar is a weak acid‚ this will impact
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Panic Attack – Is Control Even Possible? Panic attack can be frightening. It can happen at random times and the patient may be exposed to different events that could‚ unknowingly‚ trigger an episode. Panic attacks can peak in intensity quickly‚ then‚ just as fast‚ they can pass even without any medical intervention. Patients who experience panic attacks could have the illogical thought that they are dying or that they are already suffocating. Others feel a pain in their chest‚ thus‚ believing
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Plan On Acids & Bases May 25‚ 2006 Table of Contents I. General Objectives Page 3 II. Learning Outcomes Page 4 III. Assessment‚ Grading & Resources Page 5 IV. Tending to different Learning styles Page 7 V. Schedule Page 8 VI. Appendix 1 Page 20 Acids and bases Unit plan Grade 12 General Objectives: ▪ Introduce pH‚ acid and base definition ▪ Discuss acid‚ base‚ strong
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In the article “Panic Attacks” from Sciencedaily.com‚ a panic attack is described as a sudden feeling of extreme fear or distress. There are a number of reasons why panic attacks occur. Panic attacks are usually triggered by exposure to a phobia. For example‚ someone with arachnophobia could have a panic attack upon sight of a spider. They can also be triggered by nicotine or caffeine. The symptoms of panic attacks include increased heart rate‚ dizziness‚ feeling of choking‚ and chills or hot
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Acid Rain Introduction: Titrations are often recorded on graphs called titration curves‚ which generally contain the volume of the titrant as the independent variable and the pH of the solution as the dependent variable (because it changes depending on the composition of the two solutions). The equivalence point on the graph is where all of the starting solution (usually an acid) has been neutralized by the titrant (usually a base). One can easily find the pKa of the monoprotic acid by finding
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Panic Attacks (Sample full outline from The Art of Public Speaking‚ 9th ed.‚ by Stephen Lucas) General Purpose: To Inform Specific Purpose: To inform my audience about panic attacks Central Idea: Today I would like to inform you about the nature of panic attacks‚ the people affected most often by them‚ and the options for treatment. Introduction I. [Get Attention] I can’t breathe‚ my arms are tingling‚ I’m really dizzy‚ and it feels as if my heart is about to fly out of my chest. II
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Acid Attack 4 women in their early 20s were attacked by a 41 year old mentally unstable woman. On September 18‚ 2017 there was an acid attack at the train station in Marseilles. ( Which is in southern France). The women that were attacked by acid are Courtney Siverling‚ Charlotte Kaufman‚ Kelsey Kosten‚ and Michelle Krug. The kind of acid that was used was hydrochloric acid. The hydrochloric acid was brought in a DIY store and was sprayed form a spray canister. They were attacked by a mentally
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