Determine if the acid-base neutralization reaction of hydrochloric acid (HCI) with sodium hydroxide (NaOH) to form sodium chloride (NaCI) and water is spontaneous at 37°C. 1. Compute for the AH° rxn of the equation: kJ/mol (Write your answer in 1 decimal place without the unit). Compound AH° (kJ/mol) AS (J/K•mol) HCI |-92.3 187.0 NaOH Naci H20 -426.7 75.91 |-411.0 -285.8 72.38 69.9

Determine if the acid-base neutralization reaction of hydrochloric acid (HCI) with sodium hydroxide (NaOH) to form sodium chloride (NaCI) and water is spontaneous at 37°C. 1. Compute for the AH° rxn of the equation: kJ/mol (Write your answer in 1 decimal place without the unit). Compound AH° (kJ/mol) AS (J/K•mol) HCI |-92.3 187.0 NaOH Naci H20 -426.7 75.91 |-411.0 -285.8 72.38 69.9

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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MISSED THIS? Watch IWE: Standard Enthalpies of Formation; Read Section 7.9. You can click on the Review link to access the section in your eText. Consider the table of Standard Thermodynamic Quantities for Selected Substances at 25 °C. Substance AH; (kJ/mol) Substance AH; (kJ/mol) Substance AH; (kJ/mol) Al(g) HCl(aq) NF₂ (g) Al₂O₂ (s) Cr(g) NH:(E) F(g) C(g) CH₂(g) C₂H₂(g) C₂H₂(g) C₂H6(g) CO(g) CO₂ (g) Cl(g) HCl(g) 330.0 -1675.7 716.7 -74.6 227.4 52.4 -84.68 -110.5 -393.5 121.3 -92.3 HF(g) HF (aq) H(g) Fe(g) FeO(s) Fe₂O₂ (s) Fe₂O4(s) N(g) -167.2 396.6 79.38 -273.3 -335.0 218.0 416.3 -272.0 -824.2 -1118.4 472.7 NH3(aq) O(g) O₂(g) S(g) SO₂(g) SO3(g) Sn(g) SnO(s) SnO₂ (s) -132.1 -45.9 -80.29 249.2 142.7 277.2 -296.8 -395.7 301.2 -280.7 -577.6 Part A Enter an equation for the formation of HF(g) from its elements in their standard states. Express your answer as a chemical equation including phases. Part C ΑΣΦ 6 A chemical reaction does not occur for this question. Part B Complete previous…
Determine if the acid-base neutralization reaction of hydrochloric acid (HCI) with sodium hydroxide (NaOH) to form sodium chloride (NaCl) and water is spontaneous at 37°C. 2. Compute for the AS° rxn of the equation: J/K•mol (round off answer to 2 decimal places) Compound HCI NaOH NaCi AH° (kJ/mol) -92.3 -426.7 -411.0 AS° (J/K•mol) 187.0 75.91 72.38 H20 -285.8 69.9
5.) Which of the following statements accurately describes the spontaneity of the reaction below?Al2O3(s) + 2Fe(s) → 2Al(s) + Fe2O3(s) H°rxn = 830.8 kJ/mol, S°rxn = 168 J/mol·K a. The reverse reaction is always spontaneous.b. The reaction is spontaneous above 4945 K.c. The reaction is spontaneous below 4945 K.d. The reaction is always spontaneous.e. There is not enough information to determine.
Consider the reaction described by the chemical equation shown. C,H,(g) + H,O(1) – C,H,OH(1) AH xn = -44.2 kJ Use the data from the table of thermodynamic properties to calculate the value of ASxn at 25.0 °C. ASixn J.K-! Calculate AGixn ·
Consider the reaction: CCI4(g) + CO2(g) → 2COCI2(g). Calculate AG (in kJ) for the reaction at 25°C under the following conditions: Pcc4 = 0.185atm, Pco2 = .125atm, and Pcoci2 = 0.750atm. CCI4(g) CO2(g) COCC2(g) AG° (kJ/mol) -62.3 -394.4 -204.9 AG =
Σ *00 For a particular reaction, AH = 81.95 kJ and AS = 27.0 J/K. Calculate AG for this reaction at 298 K. AG = %3D What can be said about the spontaneity of the reaction at 298 K? O The system is spontaneous in the reverse direction. O The system is at equilibrium. O The system is spontaneous as written. 8:12 PH (口四< 11/8/20 F5 F8 F12 PrtScr Insert Delete Backspace $4 % 8. 5. 7. 24 Alt Ctri
Given the following reaction: 2NO(g) + Cl2(g) 2NOCl(g) DHorxn = -75.5kJ 1. Is the reaction exothermic or endothermic? 2.Does the entropy increase, decrease, or stay the same as reactants form products? 3.Calculate the DGorxn at 10oC and indicate whether the reaction is spontaneous or nonspontaneous. SfoNO = 210.65 J/K; SfoCl2 = 223 J/K; SfoNOCl = 261.6 J/K
Using H° data, calculate the standard enthalpy change for the reaction at 298K. 2 NH3(g) HNO3(aq) --> NO2(g) 2 H20(1) AH° (KJ/mol) -46.19 -206.6 33.84 -285.83 (Note: the table AH values are located directly below the corresponding compound, this is the number found in the Appendix)
Consider the following reaction: C(graphite) + 1/2 O2 (g) → CO(g) Is it spontaneous under standard conditions at 298 K? Answer this question by calculating AS" (system), AS° (surroundings), and AS (universe). (Define reactants and products as the system.) S* (J/mol · K) A¡H° (kJ/mol) at 298 K (kJ/mol) Compound at 298 K C(s, graphite) 5.6 CO(g) 197.674 -110.525 CS2 (g) 237.8 116.7 CCL (e) 214.39 -128.4 Cl2 (g) 223.08 Si(s) 18.82 SİCL, (g) 330.86 -662.75 S(s, rhombic) 32.1 Br2 (e) 152.2 HBr(g) 198.70 -36.29 H2 (g) 130.7 H2O2 (e) 109.6 -187.78 O2 (g) 205.07 O yes O no
Using the information given below, calculate the ΔΔSo at 25oC for the given reaction. 2 AlCl3(s) → 2 Al(s) + 3 Cl2(g) SoAl(s) = 28.3 J/(mol K); SoCl2(g) = 223.0 J/(mol K); SoAlCl3(s) = 110.7 J/(mol K) Select one: a. 504.2 J/K b. 140.6 J/K c. -833.8 J/K d. -305.4 J/K
The reaction 2N;O)- 2N2(9) + Oz(g) has AH° - -163.14 kJ. What is the value of AE for the decomposition of 194 g of N20 at 25 °C? If we assume that AH doesn't change appreciably with temperature, what is AE for this reaction at 234 °C? At 25 °C: AE - i kJ At 234 °C: AE - kJ
A mixture of CO(g) and H2(g) is produced by passing steam over hot charcoal: H2O(g)+ C(s)->H2(g)+CO(g) Using the appropriate thermodynamic values in the table below, calculate the lowest temperature at which the reaction is spontaneous under standard conditions. Compound ΔGf (kJ/mol) ΔHf (kJ/mol) ΔHf (kJ/mol) H2O(g) –228.6 –241.8 188.8 H2O(ℓ) –237.2 –285.8 69.9 C(s) 0.0 0.0 5.7 H2(g) 0.0 0.0 130.6 CO(g) –137.2 –110.5 197.7 O2(g) 0.0 0.0 205.0 _____K