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UK - CHE 107 - Class Notes - Week 7

Created by: Michael Notetaker Elite Notetaker

UK - CHE 107 - Class Notes - Week 7

School: University of Kentucky
Department: Chemical Engineering
Course: General College Chemistry II
Professor: Andres Nunez
Term: Fall 2018
Tags: acids and bases and titrations
Name: Week & notes
Description: For Final Exam
Uploaded: 12/03/2018
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School: University of Kentucky
Department: Chemical Engineering
Course: General College Chemistry II
Professor: Andres Nunez
Term: Fall 2018
Tags: acids and bases and titrations
Name: Week & notes
Description: For Final Exam
Uploaded: 12/03/2018
1 Pages 35 Views 28 Unlocks
  • Better Grades Guarantee
  • 24/7 Homework help
  • Notes, Study Guides, Flashcards + More!

Unformatted text preview: CHE 107 Ch. 14.7 Acid-base Titrations Facids have a high in the y buses have low Chry weak base / strong acid titre ion curve The point where the off corresponds to us the weak base | Bin water is before the world any titration. Only went base is ovosen The point where ot corresponds to a solution of the conjucate acid (B Hy in water is at the endeoint of the titration. All of the weak base B) has been protomated into its conjugate acid (BH) and no exces Hitrant has been addedi . The point where pHapka Bl+ is when the number of moles of B & the number of mules of BH4, It occurs halfway to the equivylenit point weak acid Strona buse titration curve The point where the pH corresponds to a solution of weakaci CHA) in water is before the addition of any titrat, only the weak ucid is present in solution The point where the pH corresponds to a solution of the konjuguteo buse (A) in water is at the equivalence jovint of the titration. All of the weakacie (HA) has been deprotonated into its conjugate buse (A), and he excess titrant has been added the point where pHapka 3 when the number of moles of HA = the number of moles of Atiteration weak acid) strong base titration curve the point where the pH corresponds to a solution of H2A in water is before the additio of any titicut - The point where the pHt corresponds to a s lution of HA in water is at the first end point of the titration the point where the pH corresponds to us on Ot A2-in water is at the second endooint the The point where pH = pkat is halfwate the first equivalence plint The point where @ H okag is hat urny between the first equivalence point and the cond equivalence point. Strong acie strong base Find PH in 224 L of ,24 0 M HCl with bri 034L fn 240 m NaOHI 0341 x 240 m NaOH = 00816 mols of excess SN: 024 x 240 MH= .00576 mols 0 0816-,005?c molson 0414 M. TOH3 1024 +,034 L POH= -log[.6474) DH=14-fond114 3 1212

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