None O Macmillan LearningFor the diprotic weak acid H₂A, Kal = 2.1 x 10-6 and Ka2 = 7.2 × 10-9.What is the pH of a 0.0600 M solution of H₂A?pH=3.95Incorrect AnswerWhat are the equilibrium concentrations of H2A and A² in this solution?7.2 x10-9[H₂A] =Incorrect Answer[A²-]=1.12 x10 4Incorrect AnswerMM

Answered: O Macmillan Learning For the diprotic…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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[References] Calculate AH for the reaction: 2NH3 (g) + O2(g) → N2H4 (1) + H2O(1) given the following data: 2NH3 (g) + 3N2O(g) → 4N2(g) + 3H2O(1) AH =–1010. kJ N2O(9) + ЗH2(9) — N;Ha (1) + Hа0(1) ДН %3D — 317 kJ N2H4 (1) + O2 (9) → N2(g)+2H20(1) ΔΗ--623 k.J На (9) + О2(9) — Н,0(1) AH = -286 kJ ΔΗ- kJ Submit Answer Try Another Version 3 item attempts remaining
To balance the chemical equation Fe,O3 + CO → Fe + CO2, you could introduce coefficients a, b, c, d and write aFe20з + bCО — сFe + dCО2 then write linear equations for each element. The equation for Fe would be: The equation for O would be:
12
Use and modify some/all the reactions provided to form the indicated overall reaction according to Hess' Law. • If a reaction is not used in your Hess' Law process, include that indication by multiplying the reaction by "0" • If no modification is needed and the reaction is applied as written below, include that indication by multiplying the reaction by "1" • Use whole numbers and simple fractions (such as "2" or "1/2", not 0.5) and negative signs (such as "-2") where needed Then calculate and report the enthalpy change (in kJ) for the overall reaction in the indicated blank, including units with your written value and rounded to 1 decimal place. Overall Reaction: CS2(1) + 302(g) → CO2(g) + 2SO2(g) Rxn # Reaction ΔΗ° (kJ) 1 C(s) → C(g) 716.67 2 C(s) + O2(g) → CO2(g) -393.5 3 3Fe(s) +202(g) → Fe3O4(s) -1118 4 C(s) + 2S(s) → CS2(1) 87.9 5 CH4(g) + O2(g) → CO₂(g) + H₂O(g) -882.0 6 S(s) + O2(g) → SO2(g) -296.8 N2(g) + 4H2(g) + Cl2(g) → 2NH4Cl(g) -629.1 7
With the information provided answer C
stru Wh
Given the following reactions Fe203(s) + 3CO(s) 2Fe(s) + 3CO2(g) AH = -28.0 kJ AH = +12.5 kJ 3Fe(s) + 4CO2(s) → 4CO2(g) + Fe3O4(s) + CO(g) → CO3(g) + 2FE3O4(s)- + 2FE304(s)' Determine the enthalpy of the reaction of Fe203 with CO: 3FE2O3(s) Answer:
Balance the following equation. Rewrite the chemical equation and include the correct coefficients and the states of matter. Fe2O3(s) + CO(g) → Fe3O4(s) + CO2(g)
complete the following reaction
Is there a reason those sig figs are wrong or are my calculations just completely off?
LUsing Table 1, calculate AH for each of the following reactions. Tell if each is exothermic or endothermic. & 2 CO(g) + 0:(g) → 2 CO:(g) h. N;(g) + 0:(R) → 2 NO(g) II. Calculate AH, for each of the following (using Table 1). i CCHae from the reaction 2 C;H:(g) + 50:(g) - 4 CO:(g) + 2 H;0(g) + 600kcal
Enumerate the 4 Guidelines of ICH.

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