u may want to reference (Pa Part A 4 After Larry had taken Nexium for 4 weeks, the pH in his stomach was raised to 4.55. What is the [H3O+] in his stomach? Express the concentration to two significant figures and include the appropriate units. H₂O¹1-2.9. 10-5 Submit μA M Previous Answers Request Answer Provide Feedback X Incorrect; Try Again; 5 attempts remaining ? P Pearson Copyright © 2023 Pearson Education Inc. All rights reserved. | Terms of Use

u may want to reference (Pa Part A 4 After Larry had taken Nexium for 4 weeks, the pH in his stomach was raised to 4.55. What is the [H3O+] in his stomach? Express the concentration to two significant figures and include the appropriate units. H₂O¹1-2.9. 10-5 Submit μA M Previous Answers Request Answer Provide Feedback X Incorrect; Try Again; 5 attempts remaining ? P Pearson Copyright © 2023 Pearson Education Inc. All rights reserved. | Terms of Use

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter13: Acids And Bases

Section: Chapter Questions

Problem 23Q

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Two students were asked to determine the Kb of an unknown base. They were given a bottle with a solution in it. The bottle was labeled aqueous solution of a monoprotic strong acid. They were also given a pH meter, a buret, and an appropriate indicator. They reported the following data: volume of acid required for neutralization = 21.0 mL pH after 7.00 mL of strong acid added = 8.95 Use the students' data to determme the Kb of the unknown base.
Normally, the volume of gastric acid in the human stomach ranges from 20. mL to 100. mL and a pH between 1.5 and 3.5 Using the information above, what is the maximum concentration (in M) of HCl for the normal human stomach? (Show your work to receive full credit.)
Ka1= 9.6 10-8 for H2S and Ka2 = 1.3 10-14, calculate the pH of the 0.04 M Na2S solution by systematic method.
Is the pKa for the acid in the question below 3.75 or 4.75. If the pKa is wrong, the whole answer is wrong. https://www.bartleby.com/questions-and-answers/what-is-the-weight-nach3coo-of-that-must-be-added-to-750.0-ml-of-0.180-m-acetic-acid-to-form-a-ph-5./e13e02da-a2a6-4137-b10a-cf4e549d8584 The original question is: What is the weight NaCH3COO of that must be added to 750.0 mL of 0.180 M acetic acid to form a pH = 5.25?
Calculate the pH of 0.0858 M NH3 MM NH3: 17.03 Kb = 1,8 x 10-5 Upload your answer and solutions here.
For NH4Cl and NaCH3COO, perform the following calculations: 1. Calculate [H3O+] using the equation below and the given pH values in Table 7b-1. 2. Calculate [OH-] using any of the equations below.[H3O+][OH-] = Kw = 1.00 × 10-14 ORpOH = 14 – pH[OH-] = 10-pOH 3. Construct an ICE table for the hydrolysable ion.4. Calculate Kh using the equations below, whichever is applicable.If the ion is a conjugate acid of a weak base, then Kh = Ka.If the ion is a conjugate base of a weak acid, then Kh = Kb.Ka = weak base H3O+[cation or conjugate acid]5. Calculate Ki using the given equation.If Kh = Ka, then Ki = Kb.If Kh = Kb, then Ki = Ka.KiKh = Kw
What is the pH of a solution prepared by combining 0.696 mol of a weak acid (Ka = 5.5 x 10-5) with 0.516 mol of the salt containing its conjugate base in 3.4 L of water? Report your answer to the hundredths place and do not include units.
For H2S, Ka1 = 9.6 10-8, and since Ka2 = 1.3 10-14, 0.04 M Na2S Calculate the pH of the solution by systematic method
Determine the concentration (M) of H3O+ in a 0.780 M solution of a triprotic weak acid, H3A, given the acid ionization constants below. Report your answer using scientific notation. Ka1 = 8.6 x 10-5 Ka2 = 4.2 x 10-8 Ka3 = 2.6 x 10-12
Hydroxylamine HONH2 readily forms salts such as hydroxylamine hydrochloride which are used as antioxidants in soaps . Hydroxylamine has Kb of 9.1 x 10^-9 . What is the pH of a 0.073 M HONH2? Report 2 decimal places
What is the pH of a 0.48 M triethylamine, (C2H5)3N, solution? Kb for triethylamine is 5.3 × 10–4. Please report 2 decimal places.
Hello, i am provided the pH levels and volumes for Bromocresol Green weak acid by strong base and strong base by weak acid. I am also provided the pH levels and volumes for Phenolphthalein weak acid by strong base and strong base by weak acid. How can we set up a table with all these information to make a graph for each. Heres the data Bromocresol Green: - weak acid by strong base: 12.80 pH; 20.3 mL - strong base by weak acid: 1.49 pH; 20.1 mL Phenolphthalein: - weak acid by strong base: 12.83 pH; 20.1 mL - strong base by weak acid:1.49 pH; 20.1 mL