Titrations lab

Titrations lab - Chem 125 Dr. Abel Name: Olivia Nixon Lab...

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Chem 125 Dr. Abel Name: Olivia Nixon Lab Day/Time: Tuesday 8am Partner(s): Ross Gregoriev, John Franzino Titrations This report form is due the beginning of lab week 8. Part A: Strong Acid - Strong Base Acid: HCl Molarity: .1M Base: NaOH Molarity: .05M • Write the balanced, net ionic equation for this reaction in the space below: Na (aq) + OH (aq) + H + (aq) + Cl - (aq) Na + (aq) + Cl - (aq) + H 2 O (l) OH (aq) + H + (aq) H 2 O (l) Calculate the volume of base required to reach the equivalence point of this titration. C 1 V 1 = C 2 V 2 (.1M)(.003L) = V 2 (.05M) V 2 = .006L • Using your titration and derivative curves, determine the exact pH of your solution at the equivalence point. Show how you determined this ON THE PLOTS. 7.2 In the space below, paste both your titration curve and derivative plot. See attached graph Part B: Weak Acid - Strong Base Acid: Maleic acid Molarity: .1M Base: NaOH Molarity: .05M • Is the weak acid a monoprotic or a diprotic acid? Diprotic acid • If maleic acid could be represented as H 2 Ma, write the 2 net ionic equations for its reaction with NaOH in the space below (showing the sequential neutralization of each acidic proton): 1) Na + (aq) + H + (aq) + HMa (aq) - + OH - (aq) H 2 O (l) + HMa - (aq) + Na + (aq) H + (aq) +OH - (aq) H 2 O (l) 2) Na + (aq) H + (aq) + Ma -2 (aq) + OH - (aq) H 2 O (l) + Ma -2 (aq) + Na + (aq) H + (aq) +OH - (aq) H 2 O (l)
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Chem 125 Dr. Abel • Using your titration and derivative curves,
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This note was uploaded on 12/05/2011 for the course CHEM 125 taught by Professor Retsek during the Winter '08 term at Cal Poly.

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Titrations lab - Chem 125 Dr. Abel Name: Olivia Nixon Lab...

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