11. You were tasked to work with a 100 mL 0.55 M CH3CH2NH2 (Kb =5.6 x 104). Before you begin your experiment, you need to find the pH, but you don't have a pH meter with you, so must calculate them on paper. a) What's the pH of this CH3CH2NH₂ solution? (5 pts) 12.3.7 12.24 b) What's the pH after 40 mL of 0.100 MHCI is added to the original solution? (5pts) +5

11. You were tasked to work with a 100 mL 0.55 M CH3CH2NH2 (Kb =5.6 x 104). Before you begin your experiment, you need to find the pH, but you don't have a pH meter with you, so must calculate them on paper. a) What's the pH of this CH3CH2NH₂ solution? (5 pts) 12.3.7 12.24 b) What's the pH after 40 mL of 0.100 MHCI is added to the original solution? (5pts) +5

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

What should be the pH range of an indicator that has a Ka of 5.21x10-4? (А) 3 to 5 (в) 3.28 to 5.28 5 to 7 D) 2.28 to 4.28
6. What is the pH of a solution containing 0.550 M HOAc and 0.460 M LiOAc?(ka of HOAc = 1.80 x 10-5) A. 4.95 B. 2.50 C. 4.67 D. 6.40 E. 8.72
18. 19. The pH of a solution of HCI was found to be 3.4. The concentration of HCI of this solution (in mol/L) is which of the following? a. 4.0 x 10-4 b. 3.4 c. 0.29 d. 2.5 x 10-¹ -11 e. 2.0 x 10-4 The organic compound aniline (C6H5NH₂) acts as weak base. What is the chemical formula of aniline's conjugate acid? a. С₁H5COOH b. C₂H5NH¯ C. H3O+ d. OH- e. C6H5NH3+
Table: Name: Serine pka: 2.187 (CO2H) / 9.209 (NH3) Ka: 6.50*10^-3 (CO2H) / 6.18*10^-10 (NH3) a) What is the pH, along with the concentration of each form of serine, in a 0.020 0 M solution of serine hydrochloride? b) What is the pH, along with the concentration of each form of serine, in a 0.020 0 M solution of the sodium salt of serine? c) What is the pH, along with the concentration of each form of serine, in a 0.020 0 M solution of serine? d) Calculate the isoionic and isoelectric pH for 0.020 0 M serine.
What is the pH of a 0.00010 M HCl? (4)
5.
us Lithium co Cording to the br Calculate th 3.17 L of r 3.1 Hydrob It takes Molarity 17) 15) A solution is created by dissolving 0.907 moles of HCI (a strong acid) into water, making 13.9 Liters of solution. Calculate the [H] and the pH of this solution: (5) 16) What is the [H] of an acid sample that has a pH of 4.02? (3) What is the pH of an aqueous 4.50 M KOH solution (a strong base)? 18) What is the [OH] of a bleach sample that registers 12.65 on a pH meter? -8-
need answer
Can someone please explain how to get this answer, thank you!
Post-lab Question #2: What is the pH of the solution obtained by mixing 30.00 mL of 0.250 M HCI and 30.00 mL of 0.125 M NaOH? We assume additive volumes. 1.20 2.38 7.00 10.1
1. A solution obtained by mixing 184.7 mmol of propionic acid with 99.96 mmol of sodium propionate and diluting to one liter, resulting in a pH of 4.6. Calculate the pKa for propionic acid. 2. How much ethylenediamine (pKa1, 7.3, pKa2, 10.11) must be added to 200 mmol of HCl and diluted to one liter to obtain a buffer solution with a pH of 10.5.
A solution has a concentration of 2.4 x 10-7. Calculate the pH and indicate if the solution is acidic or basic. Select one: a. 2.4, acidic b. 6.6, acidic c. 6.6, basic d. 2.4, basic e. 6.61979, acidic