Chemistry: Principles and Reactions
8th Edition
ISBN: 9781305079373
Author: William L. Masterton, Cecile N. Hurley
Publisher: Cengage Learning
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Textbook Question
Chapter 15, Problem 39QAP
Write net ionic equations for the reaction of H+ with
(a) Fe2S3
(b) Mg(OH)2
(c) MgCO3
(d) Pt(NH3)42+
(e) Hg2I2
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A 0.2219 g sample of pure iron wire was dissolved in acid and the iron reduced to +2 state. Then
the solution required 34.65 mL of cerium (IV) in a titration. Calculate the molar concentration of
Ce solution.
(A) 0.1147 M
(B) 0.1174 M
(C) 0.1417 M
(D) 0.1471 M
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C
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(a) What is the pH of a 0.32 M solution of a weak acid, HCNO if Ka for HCNO is 2.0 x 10-4? (SHOW CALCULATIONS)
(b) How would the pH change if 0.10 M KCNO is added to the solution and show how you determined this change.
This compound is used in the preliminary treatment of municipal water supply.
(A) Al2(SO4)3
(B) Na2CO3
(C) NaOCl
(D) Ca(OCl)2
Chapter 15 Solutions
Chemistry: Principles and Reactions
Ch. 15 - Write a net ionic equation for the reaction...Ch. 15 - Write a net ionic equation for the reaction...Ch. 15 - Write a balanced net ionic equation for the...Ch. 15 - Write a balanced net ionic equation for the...Ch. 15 - Calculate K for the reactions in Question 1.Ch. 15 - Calculate K for the reactions in Question 2.Ch. 15 - Calculate K for the reactions in Question 3.Ch. 15 - Calculate K for the reactions in Question 4.Ch. 15 - Calculate [H+] and pH in a solution in which...Ch. 15 - Calculate [OH-] and pH in a solution in which the...
Ch. 15 - A buffer is prepared by dissolving 0.0250 mol of...Ch. 15 - Prob. 12QAPCh. 15 - A buffer solution is prepared by adding 15.00 g of...Ch. 15 - A buffer solution is prepared by adding 5.50 g of...Ch. 15 - A solution with a pH of 9.22 is prepared by adding...Ch. 15 - An aqueous solution of 0.057 M weak acid, HX, has...Ch. 15 - Which of the following would form a buffer if...Ch. 15 - Which of the following would form a buffer if...Ch. 15 - Calculate the solubility (in grams per liter) of...Ch. 15 - Calculate the solubility (in grams per liter) of...Ch. 15 - Copper(l) chloride, CuCl, is the starting material...Ch. 15 - Prob. 22QAPCh. 15 - Prob. 23QAPCh. 15 - Ksp for CaSO4 at 100C is estimated to be1.6105. At...Ch. 15 - Prob. 25QAPCh. 15 - At 25C, 10.24 mg of Cr(OH)2 are dissolved in...Ch. 15 - Calcium nitrate is added to a sodium sulfate...Ch. 15 - Cadmium(ll) chloride is added to a solution of...Ch. 15 - Water from a well is found to contain 3.0 mg of...Ch. 15 - Silver(I) sulfate (Ksp=1.2105) is used in the...Ch. 15 - A solution is prepared by mixing 13.00 mL of...Ch. 15 - A solution is prepared by mixing 45.00 mL of 0.022...Ch. 15 - A solution is 0.047 M in both NaF and Na2CO3....Ch. 15 - Solid lead nitrate is added to a solution that is...Ch. 15 - A solution is made up by adding 0.632 g of barium...Ch. 15 - A solution is made up by adding 0.839 g of...Ch. 15 - Prob. 37QAPCh. 15 - To a beaker with 500 mL of water are added 95 mg...Ch. 15 - Write net ionic equations for the reaction of H+...Ch. 15 - Prob. 40QAPCh. 15 - Prob. 41QAPCh. 15 - Write a net ionic equation for the reaction with...Ch. 15 - Prob. 43QAPCh. 15 - Write a net ionic equation for the reaction with...Ch. 15 - Prob. 45QAPCh. 15 - Write an overall net ionic equation and calculate...Ch. 15 - Consider the reaction...Ch. 15 - Consider the reaction BaF2(s)+SO42(aq)BaSO4(s)+2...Ch. 15 - Aluminum hydroxide reacts with an excess of...Ch. 15 - Prob. 50QAPCh. 15 - Calculate the molar solubility of gold(I) chloride...Ch. 15 - Calculate the molar solubility of PbCl2 in 0.2 M...Ch. 15 - For the reaction...Ch. 15 - For the reaction Zn(OH)2(s)+2OH(aq)Zn(OH)42(aq)...Ch. 15 - What are the concentrations of Cu2+, NH3, and...Ch. 15 - Prob. 56QAPCh. 15 - Calcium ions in blood trigger clotting. To prevent...Ch. 15 - Prob. 58QAPCh. 15 - A town adds 2.0 ppm of F- ion to fluoridate its...Ch. 15 - Consider the following hypothetical dissociation:...Ch. 15 - Prob. 61QAPCh. 15 - Consider a 2.0-L aqueous solution of 4.17 M NH3,...Ch. 15 - Marble is almost pure CaCO3. Acid rain has a...Ch. 15 - Prob. 64QAPCh. 15 - Prob. 65QAPCh. 15 - The box below represents one liter of a saturated...Ch. 15 - Consider a saturated solution of BaCO3 at 7.5C....Ch. 15 - Prob. 68QAPCh. 15 - Consider the insoluble salts JQ, K2R, L2S3, MT2,...Ch. 15 - Prob. 70QAPCh. 15 - Consider the equilibrium curve for AgCl shown...Ch. 15 - Dissolving CaCO3 is an endothermic reaction. The...Ch. 15 - Challenge Problems Insoluble hydroxides such as...Ch. 15 - What is the solubility of CaF2 in a buffer...Ch. 15 - What is [Br-] just as AgCl begins to precipitate...Ch. 15 - Prob. 76QAPCh. 15 - Prob. 77QAPCh. 15 - Prob. 78QAP
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- A solution was prepared by dissolving 1210 mg of K3Fe(CN)6 (329.2 g/mol) in sufficient water to give 775 mL. Calculate(a) the molar analytical concentration of K3Fe(CN)6.(b) the molar concentration of K+.(c) the molar concentration of Fe(CN)63-.(d) the weight/volume percentage of K3Fe(CN)6.(e) the number of millimoles of K+ in 50.0 mL of this solution.(f) ppm Fe(CN)63- .(g) pK for the solution.(h) pFe(CN)6 for the solution.arrow_forward0.15 M Cr3 + (in water) E metallic lead is added. When the reaction balance is established, what happens to [Pb2+], [Cr2+] and [Cr3+]?arrow_forwardThe composition of a hydrated sodium-salt of a chromium(III)-oxalate complex ion conforms to the general formula: NaxCr(C2O4)3·wH2O A 0.2547-g sample of this compound required 21.99 mL of 0.02925 M KMnO4 solution for the titration of all of the oxalate. a)What is the value of x? b)What is the value of w?arrow_forward
- Choose the best answer below. Consider the following complex ion formation equilibrium and it's equilibrium constant, Kf. Which of the following statements is FALSE? Cu2* (aq) + 4CN" (aq) Û Cu(CN)4² (aq) K = 1.0x1025 Cu2* is a Lewis acid in the reaction, and CN' is a Lewis base Removing some of the Cu2* (e.g., by precipitation) will cause some of the complex ion to dissociate O If enough CN is added, the equilibrium mixture would contain zero Cu²+ The complex ion is a Lewis acid-base adduct Adding more CN" will cause more complex ion to form ) The equilibrium lies in favor of the complex ionarrow_forward2. A common reagent is used to identify zinc and copper ions:A) Sodium sulideB) Potassium hexacyanoferrate (II)C) Potassium hexacyanoferrate (III)D) Ammonia solutionE) Potassium iodidearrow_forwardWhat is the net ionic equation for the reaction between aqueous solutions of Cu(C2H3O2)2 and NaOH?arrow_forward
- Given the balanced equation: 16H+ + 2MnO4- + 5C2O42- --> 2Mn+ + 10CO2 + 8H2O If .184 g of green K3[Fe(C2O4)3]*3H2O was titrated with 19.5 mL .0310 M KMnO4, what is the percent purity? (I do not understand because there are not even any potassium in the equation to begin with. I do not know what to use to calculate molar mass or mole rations)arrow_forward0.2219 g of pure iron wire was dissolved in acid nd iron reduced to+2 state. Then the solution required 34 65ml of cerium(4) in a titration . Calculate molar concentration of ce4+???arrow_forwardCalculate the pH of a solution that is 0.100 M in Fe(NO3)3.arrow_forward
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