A 50.0 mt of basic solute (K, 158 x 10 ) is titrated with a 25.0 ml of 0.100 M HCI solution. Which of the following indicators would be best for this titration? Indicator pKa 3 46 methyl orange methyl red bromocreol purple bromthymol blue thymol blue phenolpthalein 5.00 6.12 7.10 8.90 9.10 Bromocresol purple Methyl orange O Phenolpthalein Methyl red Bromthymol blue

A 50.0 mt of basic solute (K, 158 x 10 ) is titrated with a 25.0 ml of 0.100 M HCI solution. Which of the following indicators would be best for this titration? Indicator pKa 3 46 methyl orange methyl red bromocreol purple bromthymol blue thymol blue phenolpthalein 5.00 6.12 7.10 8.90 9.10 Bromocresol purple Methyl orange O Phenolpthalein Methyl red Bromthymol blue

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...

See similar textbooks

Similar questions

The following graph shows the pH curve for the titration of 25 mL of a 0.1 M monoprotic acid solution with a 0.1 M solution of a monoprotic base. 14 pH 12 10 8 6 4 2 0 0 5 10 15 20 25 30 35 40 45 50 mL of 0.1 M base added (1) The pH curve represents the titration of a (2) Choose a suitable indicator for the endpoint of the titration from the following pulldown list. 0 Malachite green Thymol blue Methyl orange Bromocresol green Methyl red Bromothymol blue Cresol red Phenolphthalein Thymolphthalein Alizarin yellow 0.2 1.8 pH 0 1 1.2 2 2.8 3 3.2 4.4 3.8 5.4 4 4.8 6.0 5 6.0 6 25 7.0 71 7 8.0 9.6 7.6 8.2 8 8.8 10.0 94 10.6 10.1 9 10 11 acid with a 12.0 12 13 14 base.
Please don't provide handwritten solution
use the titration curve below. 14 12 10 8 4 2 60 70 10 20 30 40 50 80 Volume of Titrant (mL) What is the possible identity of the titrant? a. Strong base b. Strong acid Which of the following stoichiometrically represents the titration curve? а. НА +3 X-Он — Х;А +3 Н,О b. НА +X-ОН — ХА+Н:0 с. Н.А +2X-Он — Х,А + 2 H,0 d. 2 H;A + 3 X(0H), → X;A2 + 6 H,0 Which of the following statement is NOT FALSE regarding the titration curve? a. There are three equivalence points located near pH 2.00, 6.00 and 12.00. b. There are three equivalence points that approximately requires 15.00, 40.00 and 60.00 mL of titrant. c. There are two equivalence points located near pH 6.00 and 12.00. d. There are two equivalence points that approximately requires 25.00 and 50.00 mL of titrant. c. Weak base d. Weak acid Hd
How is activity related to the 1/2 equivalence point in a titration? activity=activity coefficient x Molarity
Consider the titration of 30.0 mL of 0.263 M weak base B (Kb = 1.3 x 10 10) with 0.150 M HI. How many mL of the HI would be required to reach the halfway point?
2) Titration of 50.00 ml of 0.04715 M Na;C04 required 39.25 mL of potassium permanganate solution. Calculate the molar concentration of potassium permanganate. Mno, + H;C204→ Mn²+ + CO, + H20
A titration of 76.0 mL of a phosphoric acid (H₃PO₄) solution of unknown concentration with a standardized 1.05 M Ca(OH)₂ solution requires 40.2 mL to reach the third equivalence point. What is the concentration of the H₃PO₄ solution?
2. Which indicator could be used for the titration of 25.0 mL of 0.100 M propanoic acid (HC3H5O3, K₂ = 1.3E-5) with 0.100 M NaOH?
T Please don't provide the handwriting solution
Be sure to answer all parts. Use the figure below to find an indicator for these titrations: (a) 0.10 M CH3NH₂(Kb = 4.4 x 10-4) with 0.10 M HCI (select) (b) 0.50 M HI with 0.10 M KOH (select) Crystal violet Thymol blue 2,4-Dinitrophenol Bromophenol blue Bromocresol green Methyl red Alizarin 0 Bromothymol blue Phenol red Phenolphthalein Alizarin yellow R 11 12 13 14
A certain indicator, HA, has a Ka value of 6.3 x 10-7. The protonated form of the indicator is yellow and the ionized form is red. What is the pKa of the indicator? pK₂ = What is the color of this indicator in a solution with pH = 4? yellow red orange
The following graph shows the pH curve for the titration of 25 mL of a 0.1 M monoprotic acid solution with a 0.1 M solution of a monoprotic base. 14 pH 12 10 8 6 4 2 0 L 05 (1) The pH curve represents the titration of a weak acid with a weak base. (2) Choose a suitable indicator for the endpoint of the titration from the following pulldown list. L J 1 10 15 20 25 30 35 40 45 50 mL of 0.1 M base added Malachite green Thymol blue Methyl orange Bromocresol green Methyl red Bromothymol blue Cresol red Phenolphthalein Thymolphthalein Alizarin yellow 0.2 pH 0 1.2 1 1.8 2 2.8 3.2 4.4 3 3.8 5.4 4 4.8 6.0 5 6.0 6 8.0 7.6 7.0 8.2 8 8.8 9.6 9 10.0 94 10.6 10.1 12.0 10 11 12 13 14