An analytical chemist is titrating 98.4 ml. of a 0.7000 M solution of ammonia (NH,) with a 0.5500M solution of HNO,. The pK, of ammonia is 4.74. Calculate the pH of the base solution after the chemist has added 107.8 mL of the HNO, solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of HNO, solution added. Round your answer to 2 decimal places. pH- 0

An analytical chemist is titrating 98.4 ml. of a 0.7000 M solution of ammonia (NH,) with a 0.5500M solution of HNO,. The pK, of ammonia is 4.74. Calculate the pH of the base solution after the chemist has added 107.8 mL of the HNO, solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of HNO, solution added. Round your answer to 2 decimal places. pH- 0

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter16: Thermodynamics: Directionality Of Chemical Reactions

Section: Chapter Questions

Problem 121QRT

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it View History Bb Content- X 18.3 Gibbs Free E... 108 BOOKMar RS Bb 93389825 X wu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IvTqeviKFP6W0cqJcWJdIACROQwyw24GWHInnFtOh8 18.5 Gibbs Free E... oxidation: reduction: 5.3 Enthalpies of... O ELECTROCHEMISTRY Writing the half-reactions of a metal-nonmetal reaction Explanation Bb 93389821 X 8 Study this chemical reaction: 2Ca+O, → 2 Cao Then, write balanced half-reactions describing the oxidation and reduction that happen in this reaction. Check 5 ローロ B What is th X 19₁ X D 0 7 Bb 93737627 X 3 Reading Schedule tv C Childre 19.6 Reduction Po.... “7 C Ⓒ2022 McGraw Hi
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For the reaction below, formation salpies at 1 bar and standart entropies are given. Çe te equilibrium constant (Kp) of the reaction at 580 K. X(g) +3 Y,(g) =2XY,(g) For X,(g) AHº,f =0 kJ mol S° = 179 J mol* K For Y(g) AH°f = 0kJ mol* S° = 215 J mol"K** For XY,(g) AH°f = -146 kJ mol" S° = 154 mol K* R = 0.08206 L atm mol-1 K-1 = 8.314 J mol-1 K-1
7. The solubility, C, of sucrose in water, expressed as grams of sucrose per 100 g of solvent, is given as below t/°C C/g 0 179.2 10 20 203.9 190.5 30 219.5 [ΔΗ (a) Draw an appropriate graph to determine the molar enthalpy of solution of sucrose in the temperature range 0 to 40°C. (b) 50mL of saturated solution of benzoic acid at 25°C requires 12.8 mL of 0.05 M NaOH to completely neutralize. What is the solubility of benzoic acid in g/L water at 25°C. so ln,m 40 238.1 = 4.96 kJ/mol, Cbenzoic acid = 1.56g/L]
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