For the reaction Ca(OH)2(aq) + 2HCl(aq) → CaCl2 (8) + 2H2O(1) AH° -30.2 kJ and AS° = 206 J/K The equilibrium constant for this reaction at 280.0 Kis Assume that AH° and As are independent of temperature.
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- 2. Standard ... M 3. AS surrou*** 1req 4. AG° = AH°... M 5. AG: Pre... 1req 6. AG: Enthal... M 7. AG fro... 1req 8. Calculat... 1req question. Consider the reaction 2NO(g) + O2(g)—>2NO2(g) Using the standard thermodynamic data in the tables linked above, calculate A Grxn for this reaction at 298.15K if the pressure of each gas is 21.99 mm Hg. 9. Calculat... 1req ANSWER: kJ/mol 10. Calcul... 1req Question Question Submit Answer Visited group attempts remaining Retry Entire Group QuestionGiven the following data: FEE Conc. (M) Volume (mL) Tinitial (°C) Tfinal (°C) Solution NaOH 0.750 50.00 19.84 23.18 HCI 0.500 50.00 19.84 Calculate AH° for the reaction: HCl(aq) + NaOH(aq) H2O(1) + NaCl(aq) You may assume all solutions to have the same density and specific heat as water (1.00 g/mL and 4.184 J/g°C) kJ/molSubstance AG°F (kJ/mol) FeO(s) -255.2 H2(g) Fe(s) H20(1) Pb(s) -237.2 02(g) H2SO4(aq) PbSO4(s) -744.5 -813.0
- Reactions of AgNO3 | | | 1 AgNO3 (aq) AgNO3 (aq) AgNO3 (aq) AgNOs (aq) AgNO3 (aq) CaCl₂ (aq) AgNO3(aq) X * X X | | | Pb(NO3)2 (aq) HCl (aq) Na3PO4 (aq) Kl (aq) CuSO4 (aq) H₂SO4 (aq) NaOH (aq) ➜>> → PAGE 125 OF 232 puble Displacement ReactionsThe emission of NO, by fossil fuel combustion can be prevented by injecting gaseous urea into the combustion mixture. The urea reduces NO (which oxidizes in air to form NO2) according to the reaction: 2 CO(NH;)»(3) + 4 NO(3) + O2(8) 4 Na(8) + 2 CO;(g) + 4 H¿O(g) Suppose that the exhaust stream of an automobile has a flow rate of 2.55 L/s at 655 Kand contains a partial pressure of NO of 12.4 torr. What total mass of urea is necessary to react complete- ly with the NO formed during 8.0 hours of driving?pneumonia is characterized by fever (a body temperature) does the patient have a body temperturr that indicates that he has pneumonia? justify your answer with suitable caculations.
- 3a. CO₂ can be formed by: BaCO 3 (s) + 2H+¹ (aq) Ba→ܢ +2 (aq) + H2O(liq) + CO2(g) Write the thermodynamic equilibrium constant expression. (4 pts) 3b. K = 3.72 × 10+9 at 1 atm and 298 K. Find AG° in kJ. Show all units and conversion factors. Use significant figures. (4 pts). Complete and balance each of the following equations. If no reaction occurs, enter NOREACTION. tab os lock esc ~ control D S ! 1 FT Q A 1 option Z 2 W S X # 3 command H BO F3 E D $ 4 C Pb(NO3)2(aq) + KCl(aq) → Express your answer as a chemical equation. Enter NOREACTION if no reaction occurs. Identify all of the phases in your answer. FA == | ΑΣΦ R Submit Part B F A chemical reaction does not occur for this question. Nal(aq) + Hg, (C₂H₂O₂)2(aq) → Express your answer as a chemical equation. Enter NOREACTION if no reaction occurs. Identify all of the phases in your answer. — | ΑΣΦ | 4 Request Answer 5 V @ A chemical reaction does not occur for this question. Submit Request Answer X T G 6 MacBook Air B Y ? H & 7 ? 77 U N 8 Dil W I M ( 9 K DO F O . – : ; I { option [ + = = ? 1 11 I 34 F12 } 1 + delet A3. (a) If 10.0 mL of H2SO4 (sp. Gr. 1.50, containing 48.7% of combined SO3 by weight) is diluted to 400 mL, what is the normality of the solution as an acid? (b) What volume of 6.00 M H2SO4 should be added to this in order to make the resulting mixture 1.00 N as an acid? FW's : H2SO4 = 98; SO3 = 80
- 6. When the ideal-gas reaction A+B=C+Dhas reached equilibrium, state whether or not each of the following relations must be true. Here n¡ is the number of moles of species i in equilibrium, P, is the partial pressure of i, and µ; is the chemical potential of i. Here a simple True or False answer is sufficient. (a) nc+np=nA +ng (b) Pc+Pp=PA+PB (c) na=ng (d) nc=na (e) If only A and B are present initially, then nc=np (f) Ha + HB= Hc+ Hp no matter what the initial composition. (g) If only A and B are present initially, then in equilibrium we must have nc # 0. (h) The equilibrium constant Kp(T)= PĄPB/(PcPp). (i) The value of –RT In Kp(T) = µE(T)+µ8(T)– H3(T) –- H§(T). ) The equilibrium constant is independent of the total pressure.6. For the reaction Cu(s) = Cu(g) AH° = 81,730 – 0.47T – 0.731x10³T² AS° = 34.94 – 1.08 log1,T – 1.46 x 10³T www Set up the expression for AG° as a function of T.b) Determine the standard enthalpy change and std. Gibbs free energy change of reaction at 400 k for the reaction Co(g) +2H2(g) → CH;OH (g) At 298.15 K, AH?.co )= -26.41 kcal/mol, AH?.CH,OH()= -48.08 kcal/mol, AG.co )= -32.8079 kcal/mol, AG.CH,OH(@)= -38.69 kcal/mol, The standard heat capacity of various components is given by. CS = a + bT + cT2 + dT³, where C is in cal/mol-K and T is in K |Component b x10 e x105 d x10° a -0.291 CH3OH CO 4.55 2.186 -1.92 6.726 0.04 0.1283 -0.5307 H2 6.952 -0.0457 0.09563 -0.2079