General Chemistry: Principles and Modern Applications (11th Edition)
11th Edition
ISBN: 9780132931281
Author: Ralph H. Petrucci, F. Geoffrey Herring, Jeffry D. Madura, Carey Bissonnette
Publisher: PEARSON
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Textbook Question
Chapter 16, Problem 52E
For hydrazine,
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Check out a sample textbook solutionChapter 16 Solutions
General Chemistry: Principles and Modern Applications (11th Edition)
Ch. 16 - According to the Brønsted-Lowry theory, lebel each...Ch. 16 - Write the formula of the conjugate based in the...Ch. 16 - For each of the following, identify the acides and...Ch. 16 - Which of the following species are amphiprotic in...Ch. 16 - Why which of the following bases will the...Ch. 16 - In a manner similar to equation (16.3), represent...Ch. 16 - With the aid of Table 16.2, predict the direction...Ch. 16 - With the aid of Table 16.2, predict the direction...Ch. 16 - Calculate [H2O4] and [OH-] or each solution: (a)...Ch. 16 - What is the pH of each of the following solution?...
Ch. 16 - Calculate [H2O4] and pH in saturated Ba(OH)2(aq) ,...Ch. 16 - A saturated aqueous soon of Ca(OH)2, has a pH of...Ch. 16 - Prob. 13ECh. 16 - What is the PH of the solution obtained when 125mL...Ch. 16 - How many millilaters at concentrated HCI(aq) (360%...Ch. 16 - How many milliliters of a 15.0%, by mass solution...Ch. 16 - What volume of 6.15 N HCI(aq) is required to...Ch. 16 - A 282 L volume of HCl(g), measured at 742 mmHg and...Ch. 16 - 50.00 mL of 0.0155 M Hl(aq) is mixed with 75.00 mL...Ch. 16 - 2500 mL of a HNO2(aq) solution with a pH of 2.12...Ch. 16 - What are the [H2O4] and pH of 0.143 M HNO2 ?Ch. 16 - What are the [H2O4] and pH of 0.085 M C2H2NH2 ?Ch. 16 - For the ionization of phenylacetic acid,...Ch. 16 - A 625 mL sample an aqueous solution containing...Ch. 16 - Fluroaceticectic acid occurs in gifblaar, one of...Ch. 16 - Caproic acid, HCgH11O2 , found in small amounts in...Ch. 16 - What mass of benzoic acid, CgC5COOH , would you...Ch. 16 - Whet must be the molarity of en aqueous solution...Ch. 16 - What are [H2O4] , [OH-] , pH, and pOH of 0.55 M M...Ch. 16 - What are [H2O4],[CH+],NH, and NH of 0.300 M CH2NH2...Ch. 16 - The solubility of 1-naphthylamin, C10H1NH2 ,a...Ch. 16 - A saturated aqueous solution of o-nitropenol,...Ch. 16 - A particular vinegar e found to contain 57% acetic...Ch. 16 - A particular household ammoni a solution (d = 0.97...Ch. 16 - A 275 mL sample of vapor in equilibrium with...Ch. 16 - One handbook lists a value of 95 for pK, of...Ch. 16 - In the diagram below, the sketch on the far on the...Ch. 16 - In the diagram below, the sketch on the far left...Ch. 16 - What is the (a) degree of ionization and (b)...Ch. 16 - What is the (a) degree of ionization and (b)...Ch. 16 - What must be the molarity of an aqueous solution...Ch. 16 - What must be the molarity of an acetic acid...Ch. 16 - Continuing the dilution described in Example 16.4,...Ch. 16 - What is the (a) degree of ionization and (b)...Ch. 16 - Prob. 45ECh. 16 - Cola drinks have a phosphoric acid content that as...Ch. 16 - Determine [H2O+],[HS-] , and [S2-] for the...Ch. 16 - For 0.045 M MH2CO2 , a weak diprotic acid....Ch. 16 - Calculate [H2O4] , [HSO4] , and SO42- in (a) 0.75M...Ch. 16 - Adipic acid, HOOC( CH2)4COOH , is among the top 50...Ch. 16 - The antimalarial dru g quinine, C20H24O2N2 , is a...Ch. 16 - For hydrazine, N2H4,pKa1=6.07 end pK32=15.05 ....Ch. 16 - Codeine, C12H21O2N , is an opiate and...Ch. 16 - Approximately 4 metric tons of quinoline, C8H7N ,...Ch. 16 - Complete the following equations in those...Ch. 16 - From data in Table 16.4, determine (a) Kgfor...Ch. 16 - Predict whether a solution of each of the...Ch. 16 - Arrange the following 0.010M solutions in order of...Ch. 16 - What is the pH of an aqueous solution that is...Ch. 16 - What is the pH of an aqueous solution that is...Ch. 16 - Sorbic acid, CH2CH=CH=CH2CO2H(pKg=4.772) , is...Ch. 16 - Pyridine, C3H2N(pKb=8.82) , from a salt,...Ch. 16 - For each of the blowing ions, write two equations—...Ch. 16 - Suppose you wanted to produce an aqueous solution...Ch. 16 - Predict which is the stronger acid: (a) HClO2 or...Ch. 16 - Explain why trichloroacetic acid, CCl2COOH , is a...Ch. 16 - Which is the stronger acid of each of the...Ch. 16 - Indicate Which of the following the weakest ac,...Ch. 16 - From the following bases, select the one with the...Ch. 16 - For the molecular models shown, write the formula...Ch. 16 - For each reaction draw a Lewis structure for each...Ch. 16 - In the following reactions indicate which is the...Ch. 16 - Indicate whether each of the following is a Lewis...Ch. 16 - Each of the following is a Lewis acid-base...Ch. 16 - The three following reactions are acid-base...Ch. 16 - CO2(g) can be removed from confined quarters (such...Ch. 16 - The molecular solid l2(s) e only slightly in...Ch. 16 - The following very strong acids are formed by the...Ch. 16 - Use Lewis structures to diagram the following...Ch. 16 - Use Lewis structures to diagram the following...Ch. 16 - Prob. 81IAECh. 16 - Prob. 82IAECh. 16 - Prob. 83IAECh. 16 - Prob. 84IAECh. 16 - Prob. 85IAECh. 16 - Prob. 86IAECh. 16 - From the observation that 0.0500M vinylacetic acid...Ch. 16 - Prob. 88IAECh. 16 - Use material balance and an electroneutrality...Ch. 16 - Prob. 90IAECh. 16 - Prob. 91IAECh. 16 - Prob. 92IAECh. 16 - Prob. 93IAECh. 16 - What mass of acetic acad, CH2COOH , must be...Ch. 16 - Prob. 95IAECh. 16 - Prob. 96IAECh. 16 - Prob. 97IAECh. 16 - Prob. 98IAECh. 16 - Prob. 99IAECh. 16 - Prob. 100IAECh. 16 - In this problem, we will use material balance and...Ch. 16 - Prob. 102IAECh. 16 - Prob. 103IAECh. 16 - Prob. 104IAECh. 16 - Maleic acid is a carbon-hydrogen-oxygen compound...Ch. 16 - In Example 16-9, rather than use the quadratic...Ch. 16 - Apply the general method for solution equilibrium...Ch. 16 - Prob. 108SAECh. 16 - Prob. 109SAECh. 16 - Explain the important distinctions between each...Ch. 16 - Prob. 111SAECh. 16 - Prob. 112SAECh. 16 - Prob. 113SAECh. 16 - Prob. 114SAECh. 16 - Prob. 115SAECh. 16 - Prob. 116SAECh. 16 - Prob. 117SAECh. 16 - Prob. 118SAECh. 16 - Determine the pH of 2.05 M NaCH2 ClCOO. (Use data...Ch. 16 - Prob. 120SAECh. 16 - A solution is found to have pH=5pOH . Is this...Ch. 16 - Propionic acid, CH2CHCOOH , is 0.42% ionized in...Ch. 16 - The conjugate acid of HPO42- is (a) PO42 ; (b)...Ch. 16 - Prob. 124SAECh. 16 - Prob. 125SAECh. 16 - Appendix E describes a useful study aid known as...
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- The hydrogen phthalate ion, C8HsO4, is a weak acid with Ka = 3.91 106. C8H5O4(aq)+H2O(l)C8H4O42(aq)+H3O+(aq) What is the pH of a 0.050 M solution of potassium hydrogen phthalate. KC8H5O4? Note: To find the pH for a solution of the anion, we must take into account that the ion is amphiprotic. It can be shown that, for most cases of amphiprotic ions, the H3O+ concentration is [H3O+]=Ka1Ka2 For phthalic acid, C8H6O4 is Ka1 is 1.12 103, and Ka2 is 3.91 106.arrow_forwardAmino acids are an important group of compounds. At low pH, both the carboxylic acid group (CO2H) and the amine group (NHR) are protonated. However, as the pH of the solution increases (say, by adding base), the carboxylic acid proton is removed, usually at a pH between 2 and 3. In a middle range of pHs, therefore, the amine group is protonated, but the carboxylic acid group has lost the proton. (This is called a zwitterion.) At more basic pH values, the amine proton is dissociated. What is the pH of a 0.20 M solution of alanine hydrochloride, [NH3CHCH3CO2H]Cl?arrow_forwardThe pigment cyanidin aglycone is one of the anthocyanin molecules that gives red cabbage (Brassica oleracea var. capitata f. rubra) its characteristic red coloration. Many chemistry students have used this red cabbage indicator to study acid-base chemistry. Estimate tire pH range at which cyanidin agly-cone shows a color change. Anth-H(aq) Anth(aq) + H+ (aq) Ka = 1.3 107arrow_forward
- Weak base B has a pKb of 6.78 and weak acid HA has a pKa of 5.12. a Which is the stronger base, B or A? b Which is the stronger acid, HA or BH+? c Consider the following reaction: B(aq)+HA(aq)BH+(aq)+A(aq) Based on the information about the acid/base strengths for the species in this reaction, is this reaction favored to proceed more to the right or more to the left? Why? d An aqueous solution is made in which the concentration of weak base B is one half the concentration of its acidic salt, BHCl, where BH+ is the conjugate weak add of B. Calculate the pH of the solution. e An aqueous solution is made in which the concentration of weak acid HA twice the concentration of the sodium salt of the weak acid, NaA. Calculate the pH of the solution. f Assume the conjugate pairs B/BH+ and HA/A are capable of being used as color-based end point indicators in acidbase titrations, where B is the base form indicator and BH is the acid form indicator, and HA is the acid form indicator and A is the base form indicator. Select the indicator pair that would be best to use in each of the following titrations: (1) Titration of a strong acid with a strong base. (i) B/BH+ (ii) HA/A (2) Titration of a weak base with a strong acid. (i) B/BH+ (ii) HA/Aarrow_forwardA chemist wanted to determine the concentration of a solution of lactic acid, HC3H5O3. She found that the pH of the solution was 2.60. What was the concentration of the solution? The Kd of lactic acid is 1.4 104.arrow_forwardIonization of the first proton from H2SO4 is complete (H2SO4 is a strong acid); the acid-ionization constant for the second proton is 1.1 102. a What would be the approximate hydronium-ion concentration in 0.100 M H2SO4 if ionization of the second proton were ignored? b The ionization of the second proton must be considered for a more exact answer, however. Calculate the hydronium-ion concentration in 0.100 M H2SO4, accounting for the ionization of both protons.arrow_forward
- 8-112 Consider an initial 0.040 M hypobromous acid (HOBr) solution at a certain temperature. At equilibrium after partial dissociation, its pH is found to be 5.05. What is the acid ionization constant, Ka, for hypobromous acid at this temperature?arrow_forwardComposition diagrams, commonly known as alpha plots, are often used to visualize the species in a solution of an acid or base as the pH is varied. The diagram for 0.100 M acetic acid is shown here. The plot shows how the fraction [alpha ()] of acetic acid in solution, =[CH3CO2H][CH3CO2H]+[CH3CO2] changes as the pH increases (blue curve). (The red curve shows how the fraction of acetate ion, CH3CO2, changes as the pH increases.) Alpha plots are another way of viewing the relative concentrations of acetic acid and acetate ion as a strong base is added to a solution of acetic acid in the course of a titration. (a) Explain why the fraction of acetic acid declines and that of acetate ion increases as the pH increases. (b) Which species predominates at a pH of 4, acetic acid or acetate ion? What is the situation at a pH of 6? (c) Consider the point where the two lines cross. The fraction of acetic acid in the solution is 0.5, and so is that of acetate ion. That is, the solution is half acid and half conjugate base; their concentrations are equal. At this point, the graph shows the pH is 4.74. Explain why the pH at this point is 4 74.arrow_forward
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