Titration Lab – Lab Report – kroll123
Search
Essays
Sign up
Sign in
Contact us
Tweet
Index
/Science
Titration Lab
Chemistry HMay 12, 2016“Concentrate” on Titration The purpose of a titration experiment is to find the concentration of an unknown acid or base. To find the concentration you have to neutralize it with a measured quantity of a case or acid solution whose concentration is known. The known solution is the titrant and the unknown solution is the analyte in titrations. In our experiment we put NaOH in a burette and in a beaker we had HCl acid and placed one drop of pH indicator. And we put it on the magnetic stirrer and dripped out the NaOH into the beaker until it became a light pink color. As mentioned before the purpose is to find the concentration of an unknown base or acid.Procedure:Into the burette pour 40 mL of NaOH Then put a stir bar in a 500mL beakerInto the beaker pour 20 mL of HCl acidNext place one drop of phenolphthalein (pH indicator) into the same beakerPut the beaker on the magnetic stirrer and turn it on. To let the NaOH out, use the stopcock to let it out little by little into the beaker. Let it drip out until the solution becomes a light pink color.If the solution turns too dark such as like fuchsia, then add 1 mL of HCl acid to the solution to make it clear.Record the initial and final volumes of both solutions.Analysis:I compared my results with three other people. I surprisingly didn’t have to change anything. All of our answers were under 1 which was fine. But there still can be many things that effect the data. The largest sources of error in this experiment are:The materials used might have not been properly cleansed from any past labsAny solutions or substances might have made contact with the current solutions with being used for the lab.Not recognizing the pink color instantlyThis would have allowed more NaOH to drip out of the buretteConclusion:Equation: [pic 1]After researching how titration can be used to determine Ka, I’ve found that you have to track the volume of base used as well as pH. Note the pH at equivalence point, the half-equivalence point occurs at the point where you have half the volume of the base used to reach the equivalence point. At the half-equivalence point, this is true: pH=pKa. The experiment can be modified in a way that you have the half volume of the base to reach the point.
Continue for 1 more page »
Read full document
Download as (for upgraded members)
Citation Generator
MLA 7
CHICAGO
(2016, 07). Titration Lab. EssaysForStudent.com. Retrieved 07, 2016, from
“Titration Lab” EssaysForStudent.com. 07 2016. 2016. 07 2016 <
"Titration Lab." EssaysForStudent.com. EssaysForStudent.com, 07 2016. Web. 07 2016. <
"Titration Lab." EssaysForStudent.com. 07, 2016. Accessed 07, 2016.
Essay Preview
By: kroll123
Submitted: July 29, 2016
Essay Length: 440 Words / 2 Pages
Paper type: Lab Report Views: 579
Report this essay
Tweet
Related Essays
Lab Report: Qualitative Analysis
Lab Report: Qualitative Analysis Aim: The aim of this experiment is to identitfy an unknown powder by conducting several experiments to determine the anion and
259 Words | 2 Pages
Physics Lab Speed of Sound in Air
Physics Waves Lab SL Introduction: This lab will investigate the properties of mechanical waves such as a longitudinal wave, focusing on the question: Does a
680 Words | 3 Pages
Ball Toss Lab
Nikki Champney Mr. DiMicco March 3, 2008 Ball Toss Lab Data: Time(s) Velocity(m/s) 0.602 0.314 0.688 1.491 0.774 3.476 0.860 3.272 0.946 2.326 1.032 1.548
294 Words | 2 Pages
Abbot Labs & Alza Analysis
Abbot Labs & Alza Analysis 1. Risk arbitrage is an investment technique that occurs after a merger has been announced. Following this, the price of
446 Words | 2 Pages
Similar Topics
Chemistry Planning Designing Lab
Cognitive Psychology Lab
Get Access to 89,000+ Essays and Term Papers
Join 209,000+ Other Students
High Quality Essays and Documents
Sign up
© 2008–2020 EssaysForStudent.comFree Essays, Book Reports, Term Papers and Research Papers
Essays
Sign up
Sign in
Contact us
Site Map
Privacy Policy
Terms of Service
Facebook
Twitter