E. Determining the pH of Water Containing Atmospheric Gases pH of water containing CO2 pH of water containing SO2 (optional) Post-Lab Questions 1. Was rain water acidic or alkaline? Why is the pH of rain not neutral? 2. Were tap water and river water acidic or alkaline? What accounts for their pH? 3. Were the pH of water containing CO2 and SO2 similar? Were the pH values within their respective ranges? 4. Write the chemical equations of both CO2 and SO2 when dissolved in water.

E. Determining the pH of Water Containing Atmospheric Gases pH of water containing CO2 pH of water containing SO2 (optional) Post-Lab Questions 1. Was rain water acidic or alkaline? Why is the pH of rain not neutral? 2. Were tap water and river water acidic or alkaline? What accounts for their pH? 3. Were the pH of water containing CO2 and SO2 similar? Were the pH values within their respective ranges? 4. Write the chemical equations of both CO2 and SO2 when dissolved in water.

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 9RQ: What is a salt? List some anions that behave as weak bases in water. List some anions that have no...

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What is a salt? List some anions that behave as weak bases in water. List some anions that have no basic properties in water. List some cations that behave as weak acids in water. List some cations that have no acidic properties in water. Using these lists, give some formulas for salts that have only weak base properties in water. What strategy would you use to solve for the pH of these basic salt solutions? Identify some salts that have only weak acid properties in water. What strategy would you use to solve for the pH of these acidic salt solutions? Identify some salts that have no acidic or basic properties in water (produce neutral solutions). When a salt contains both a weak acid ion and a weak base ion, how do you predict whether the solution pH is acidic, basic, or neutral?
(a) What is the pH of a 0.105 M HCl solution? (b) What is the hydronium ion concentration in a solution with a pH of 2.56? Is the solution acidic or basic? (c) A solution has a pH of 9.67. What is the hydronium ion concentration in the solution? Is the solution acidic or basic? (d) A 10.0-mL sample of 2.56 M HCl is diluted with water to 250. mL What is the pH of the dilute solution?
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.
Unpolluted rain water has a pH of about 5.5. Acid rain has been shown to have a pH as low as 3.0. Calculate the [H+] ratio of acid rain to unpolluted rain.
For oxyacids, how does acid strength depend on a. the strength of the bond to the acidic hydrogen atom? b. the electronegativity of the element bonded to the oxygen atom that bears the acidic hydrogen? c. the number of oxygen atoms? How does the strength of a conjugate base depend on these factors? What type of solution forms when a nonmetal oxide dissolves in water? Give an example of such an oxide. What type of solution forms when a metal oxide dissolves in water? Give an example of such an oxide.
Pick out the wrong pH or pOH values for following solution Multiple answers: Multiple answers are accepted for this question Selected answers will be automatically saved. For keyboard navigation... SHOW MORE ✓ a b с d e 0.0010 M NaOH. pH = 3.0 0.00010 HCl. pH = 4.0 0.10 M CH3COOH. pH = 2.88 0.10 M NH3. pOH = 2.88 0.0010 M H2SO4. pH = 5.1
Question 3 What happens to the pH value as the concentration of OH increases? O It decreases O It stays constant O It increases Question 4 What is the H3O* concentration of a solution that has a pH of 6.7? Give your answer to 3 sig. figs. and in scientific notation (e. g. 1.23E-3). What is the OH concentration of a solution that has a pH of 6.7? Give your answer to 3 sig. figs. and in scientific notation (e. g. 1.23E-3).
Calculate the pH and the pOH of each of the following solutions at 25°C for which the substances ionize completely. (Assume K 1.01x 10-14) %3D (a) 0.215 M HCI pH 4.0 0.668 pOH 4.0 13.328 (b) 0.0126 M NAOH pH 4.0 1.90 pOH 4.0 12.096 (c) 2.9 M HNO3 pH 4.0 -0.462 pOH 4.0 14.46 (d) 0.0038 M Ca(OH)2 pH 4.0 pOH 4.0 t. Supporting Materials Periodic Table Constants and Supplemental Data Factors Additional Materials Section 14.2
៣ AA Learning E4 CH 16 17 and 18 prod03-cnow-owl.cengagenow.com Learning Learning Learning × Online tea... y dr. marlow... ember L... with We [References] Question 1 1 pt Question 2 2 pts Question 3 1 pt Question 4 2 pts Calculate the pH of a solution that has an ammonium chloride concentration of 0.046 M and an ammonia concentration of 0.045 M. K 1.8 x 10-5 Question 5 1 pt pH = Question 6 2 pts Question 7 1 pt Submit Answer Try Another Version 2 item attempts remaining Question 8 2 pts Question 9 1 pt
This question is concerned with acid/base. The ionic product of water may be taken as 10-14 mol2dm-6. Aqueous solutions of a particular monobasic acid HX have the following pH values (see figure below). Concentration in moldm-3 PH Hydrogen ion concentration in moldm-3 Solution A 0.1 2.80 1.585 x 10-3 Solution B 0.001 3.85 Complete the table by calculating the hydrogen ion concentration of solution B. Write down the equation describing the dissociation of the acid HX in an aqueous solution.
eade 6. In pure water, the concentrations of H₂O* and OH are equal. In an ACIDIC solution, the [H₂O*] is higher/lower (circle one) compared to [OH-], while in BASIC solution the [H3O*] is higher / lower (circle one) compared to [OH']. B. Finding the pH of Commonly Encountered Household Substances 1. Table 3. Indicator color, pH, and whether that shows the substance is an acid, base, or neutral. Acid, base, or neutral? acidic Substance Distilled water Baking soda Vinegar Lemon juice Window cleaner Seltzer water Antacid tablets Aspirin tablets Indicator color light purple turqouise Fuschia light pink green Blue light blue red pink Estimated pH 5 10 3 4 11 7 7 8 2 base acidic acidic Base neutral Base acid 2. Of all the items tested, which is the most acidic? Using the pH you determined, what is the approximate [H3O+]? 3. Of all the items tested, which is the most basic? Using the pH you determined, what is the approximate [H3O*]?
Scholarship App X NGLSync Portal Q ctivity.do?locator=assignment-take [Review Topics] [References] Use the References to access important values if needed for this question. A solution contains 0.387 M potassium fluoride and 0.314 M hydrofluoric acid. The pH of this solution is Submit Answer Retry Entire Group 9 more group attempts remaining Discord A 64°F Report - Google X 799+ a X OWLv2 | Online X + 9:52 PM 5/28/2022