Laboratory Experiments For Chemistry: The Central Science, Si Edition
14th Edition
ISBN: 9781292221335
Author: Theodore E. Brown
Publisher: PEARSON
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Textbook Question
Chapter 17, Problem 71E
Calculate the minimum pH needed to precipitate Mn (OH)2 so completely that the concentration of Mn2+ (aq) is less than 1μg per liter [1 part per billion (ppb)].
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Solution map
In this titration, the concentration of base is known and can be used to calculate the unknown acid concentration:
concentration of base → moles of base → moles of acid → concentration of acid
Part A
How many moles of Ba(OH)2 are present in 225 mL of 0.200 mol L-1 Ba(OH)2?
Express your answer numerically in moles.
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mol Ba(OH)2
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A student measures that it takes 7.21mL of 0.326 M NaOH (aq) solution to reach the first equivalence point of a titration of 100.0 mL of phosphoric acid solution. He also notes that it takes a total of 14.40 mL of 0.326 M NaOH (aq) solution to reach the second equivalence point. What is the concentration of the phosphoric acid solution?
Chapter 17 Solutions
Laboratory Experiments For Chemistry: The Central Science, Si Edition
Ch. 17.1 - For the generic equilibrium HA(aq)H+(aq)+A(aq) ,...Ch. 17.1 - Practice Exercise 2 Calculate the pH of a solution...Ch. 17.1 - Calculate the concentration of the lactate ion in...Ch. 17.1 - Practice Exercise 2 Calculate the format ion...Ch. 17.2 - Practice Exercise 1 If the pH of a buffer solution...Ch. 17.2 - Prob. 17.3.2PECh. 17.2 - Prob. 17.4.1PECh. 17.2 - Prob. 17.4.2PECh. 17.2 - Calculate the number of grams of ammonium chloride...Ch. 17.2 - Prob. 17.5.2PE
Ch. 17.2 - Prob. 17.6.1PECh. 17.2 - Determine The pH of the original buffer described...Ch. 17.3 - An acid-base titration is performed: 250.0 mL of...Ch. 17.3 - Prob. 17.7.2PECh. 17.3 - Prob. 17.8.1PECh. 17.3 - Calculate the pH in the solution formed by adding...Ch. 17.3 - Prob. 17.9.1PECh. 17.3 - Prob. 17.9.2PECh. 17.4 - Which of these expressions correctly expresses the...Ch. 17.4 - Prob. 17.10.2PECh. 17.4 - You add 10.0 grams of solid copper(II) phosphate,...Ch. 17.4 - Prob. 17.11.2PECh. 17.4 - Prob. 17.12.1PECh. 17.4 - Prob. 17.12.2PECh. 17.5 - Consider a saturated solution of the salt MA3, in...Ch. 17.5 - Prob. 17.13.2PECh. 17.5 - Prob. 17.14.1PECh. 17.5 - Prob. 17.14.2PECh. 17.5 - Prob. 17.15.1PECh. 17.5 - Prob. 17.15.2PECh. 17.6 - An insoluble salt MA has a Kap of 1.0 × 10-10. Two...Ch. 17.6 - Does a precipitate form when 0.050 L of 2.0 × 10-2...Ch. 17.6 - Under what conditions does an ionic compound...Ch. 17.6 - Prob. 17.17.2PECh. 17 - Prob. 1DECh. 17 - The following boxes represent aqueos solutions...Ch. 17 - Prob. 2ECh. 17 - Prob. 3ECh. 17 - Prob. 4ECh. 17 - Prob. 5ECh. 17 - Prob. 6ECh. 17 - Prob. 7ECh. 17 - Prob. 8ECh. 17 - 17.9 The following graphs represent the behavior...Ch. 17 - Prob. 10ECh. 17 - 17.11 The graph below shows the solubility of a...Ch. 17 - 17.12 Three cations, Ni+2, Cu+2, and Ag+, are...Ch. 17 - Prob. 13ECh. 17 - Prob. 14ECh. 17 - Prob. 15ECh. 17 - Use information from Appendix D to calculate the...Ch. 17 - Prob. 17ECh. 17 - a. calculate the percent ionization of 0.125 M...Ch. 17 - Prob. 19ECh. 17 - 17.20 Which of the following solutions is a...Ch. 17 - Prob. 21ECh. 17 - Calculate the pH of a buffer that is 0.105n M in...Ch. 17 - Prob. 23ECh. 17 - A buffer is prepared by adding 10.0 g of ammonium...Ch. 17 - You are asked to prepare a pH = 3.00 buffer...Ch. 17 - You are asked to prepare an pH = 4.00 buffer...Ch. 17 - Prob. 27ECh. 17 - Prob. 28ECh. 17 - Prob. 29ECh. 17 - Prob. 30ECh. 17 - Prob. 31ECh. 17 - Prob. 32ECh. 17 - The accompanying graph shows the titration curves...Ch. 17 - Prob. 34ECh. 17 - 17.35 The samples of nitric and acetic acids shows...Ch. 17 - 17.36 Determine whether each of the following...Ch. 17 - Prob. 37ECh. 17 - Prob. 38ECh. 17 - Prob. 39ECh. 17 - Assume that 30.0 mL of a M solution of a week base...Ch. 17 - Prob. 41ECh. 17 - Prob. 42ECh. 17 - Prob. 43ECh. 17 - Prob. 44ECh. 17 - Prob. 45ECh. 17 - Consider the titration of 30.0 mL of 0.050 M NH3...Ch. 17 - Prob. 47ECh. 17 - Prob. 48ECh. 17 - 17.49 for each statement, incate whether it is...Ch. 17 - The solubility of two slighty soluble salts of...Ch. 17 - Prob. 51ECh. 17 - 17.52
a. true or false: solubility and...Ch. 17 - If the molar solubility CaF2 at 35 C is 1.24 *10-3...Ch. 17 - Prob. 54ECh. 17 - Prob. 55ECh. 17 - Prob. 56ECh. 17 - using calculate the molar solubility of AgBr in a....Ch. 17 - calculate the solubility of LaF3 in grams per...Ch. 17 - Prob. 59ECh. 17 - Consider a beaker containing a saturated solution...Ch. 17 - Calculate the solubility of Mn (OH) 2 in grams per...Ch. 17 - Calculate the molar solubility of Ni (OH) 2 when...Ch. 17 - 17.63 Which of the following salts will be...Ch. 17 - For each of the following slightly soluble salts,...Ch. 17 - Prob. 65ECh. 17 - Prob. 66ECh. 17 - Use values of Kap for Agl and Kf for Ag (CN) 2- to...Ch. 17 - Prob. 68ECh. 17 - Prob. 69ECh. 17 - Prob. 70ECh. 17 - Calculate the minimum pH needed to precipitate Mn...Ch. 17 - Prob. 72ECh. 17 - Prob. 73ECh. 17 - Prob. 74ECh. 17 - Prob. 75ECh. 17 - Prob. 76ECh. 17 - A solution containing several metal ions is...Ch. 17 - An unknown solid is entirely soluble in water. On...Ch. 17 - Prob. 79ECh. 17 - Prob. 80ECh. 17 - 17.81
Precipitation of the group 4 cautions of...Ch. 17 - Prob. 82ECh. 17 - Prob. 83AECh. 17 - Prob. 84AECh. 17 - Furoic acid (HC5H3O3) has a K value of 6.76 x 10-4...Ch. 17 - Prob. 86AECh. 17 - Equal quantities of 0.010 M solution of an acid HA...Ch. 17 - Prob. 88AECh. 17 - 17.89 A biochemist needs 750 ml of an acetic...Ch. 17 - A sample of 0.2140 g of an unknown monophonic acid...Ch. 17 - A sample of 0.1687 g of an unknown monoprotic acid...Ch. 17 - Prob. 92AECh. 17 - Prob. 93AECh. 17 - What is the pH of a solution made by mixing 0.30...Ch. 17 - Suppose you want to do a physiological experiment...Ch. 17 - Prob. 96AECh. 17 - Prob. 97AECh. 17 - For each pair of compounds, use Kap values to...Ch. 17 - Prob. 99AECh. 17 - Tooth enamel is composed of hydroxyapatite, whose...Ch. 17 - Salts containing the phosphate ion are added to...Ch. 17 - Prob. 102AECh. 17 - 17.103 The solubility –product constant for barium...Ch. 17 - Prob. 104AECh. 17 - Prob. 105AECh. 17 - A buffer of what pH is needed to give a Mg2+...Ch. 17 - The value of Kap for Mg3(AsO4)2 is 2.1 10-20 ....Ch. 17 - Prob. 108AECh. 17 - Prob. 109AECh. 17 - Prob. 110IECh. 17 - Prob. 111IECh. 17 - Prob. 112IECh. 17 - Prob. 113IECh. 17 - Prob. 114IECh. 17 - Prob. 115IECh. 17 - Prob. 116IECh. 17 - A concentration of 10-100 parts per billion (by...Ch. 17 - Prob. 118IECh. 17 - Prob. 119IECh. 17 - In nonaqueous solvents, it is possible to react HF...
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