Answered: 7. 5. Perform the same calculations as…

7. 5. Perform the same calculations as above using a titration where 30.0ml of 0.25M HC2H3O2 are titrated with 0.15M LiOH.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

7.
5. Perform the same calculations as above using a titration where 30.0ml of 0.25M HC2H3O2
are titrated with 0.15M LiOH.

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The following plot shows a titration curve for the titration of 1.00L of 1.00M diprotic acid H2A with NaOH. 14 12 10 0.50 1.50 1.00 2.00 250 3.00 Moles of OH added Which point or points are within any buffer region? O points a and c O point a O point b O points b and d Hd
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4. In the titration of15.00 mL of 0.200 M HC with 0.100 M NaOH, calculate the pH after the addition of the following volumes of titrant (mL) ; (a) 0.00; (b) 10.00; (c)14.50 ; (d) 15.00; (e) 15.50: (f) 20.00 mL.
A7
ANSWER D and how would the rankings change if...
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A 20.0 mL solution of 0.200M weak acid HA is titrated with a 0.400M NaOH solution.(Ka of HA = 5.0 x 10-6).Calculate the pH after the following addition of the NaOH solution:a) 0.00 mLb) 5.00 mLc) 10.00 mL d) 13.50 mL
2. Calculate the volume of the salt to be used in the preparation of 200 ml of the following buffer solutions. Show computations below. BUFFER DESIRED NUMBER pH 456N 7 8 2.10 SITO 4.40 6.90 7.18 9.45 8.25 0.1M SOLUTIONS QWOL CH3COOH/CH3COONa NaH₂PO4/Na₂HPO4 NaH₂PO4/Na₂HPO4 NH4CI/NH3 NH4CI/NH3 pka 4.70 6.80 6.80 9.30 9.30 VOLUME OF SALT (ml)
A titration of 35.0 mL of an unknown tribasic salt, Li₃A, requires 90.00 mL of 0.250 M HCl to reach the 3rd equivalence point. The titration data is shown below: Vol of HCl (mL) 15.00 30.00 45.00 60.00 75.00 90.00 pH 10.45 8.62 6.79 4.86 2.93 1.35 What is the value of Kb₁ of A³⁻?
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es) 1. Calculate the volume of the salt to be used in the preparation of 200 ml of the following buffer solutions. BUFFER DESIRED NUMBER pH 1 2 3 4 7.18 9.45 8.25 6.90 0.1M SOLUTIONS NaH2PO4/Na2HPO4 NH4CI/NH3 NH4CI/NH3 NaH2PO4/Na2HPO4 pka wwwwww 6.80 9.30 9.30 6.80 VOLUME OF ACID (ml) VOLUME OF SALT (ml)
25.0 ml of 0.100M NaOH is titrated with HC2H3O2 and 50.0mL of the acid is used to reach the endpoint. e)Would the compound formed at the equivalence point be acidic, basic or neutral? Write a hydrolysis equation for the salt formed in a) to support your answer. f) Which indicator should be used for this titration? g)Sketch a titration curve for this reaction. Label the x and y axes.