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- a The salt NaNO3 can be thought of as NaCl+KNO3KCl. Demonstrate that 0 values show this type of additivity by calculating 0 for NaNO3 from 0 values of NaCl,KNO3andKCl found Table 8.4. Compare your calculated value with the 0 value for NaNO3 in the table. b Predict approximate 0 values for NH4NO3 and CaBr2 using the values given in Table 8.4.What characterizes an electrolytic cell? What is an ampere? When the current applied to an electrolytic cell is multiplied by the time in seconds, what quantity is determined? How is this quantity converted to moles of electrons required? How are moles of electrons required converted to moles of metal plated out? What does plating mean? How do you predict the cathode and the anode half-reactions in an electrolytic cell? Why is the electrolysis of molten salts much easier to predict in terms of what occurs at the anode and cathode than the electrolysis of aqueous dissolved salts? What is overvoltage?Determine the standard free energy change, Gf, for the formation of S2-(aq) given that the Gf for. Ag*(aq) and Ag2S(s) are 77.1 kJ/mole and 395 kJ/mole respectively, and the solubility product for Ag2S(s) is 81051.
- Consider the system A(g)B(g) at25C. a. Assuming that GAo=8996J/molandGBo=11,718J/mol, calculate the value of the equilibrium constant for this reaction. b. Calculate the equilibrium pressures that result if 1.00 mole of A(g) at 1.00 atm and 1.00 mole of B(g) at 1.00 atm are mixed at 25C. c. Show by calculations that G = 0 at equilibrium.For the following reactions at constant pressure, predict if HE,HE,orH=E a. 2HF(g)H2(g)+F2(g) b. N2(g)+3H2(g)2NH3(g) c. 4NH3(g)+5O2(g)4NO(g)+6H2O(g)The free energy change for a reaction, G, is an extensive property. What is an extensive property? Surprisingly, one can calculate G from the cell potential. , for the reaction. This is surprising because : is an intensive property. How can the extensive property G be calculated from the intensive property ?
- When jump-starting a car with a dead battery, the ground jumper should be attached to a remote part of the engine block. Why?8:51 AM Mon Dec 5 = S BIOL 286 E B Lecture Pow... Bb Lecture Pow... O ELECTROCHEMISTRY Recognizing consistency among equilibrium constant, free... cell A B A student made measurements on some electrochemical cells and calculated three quantities: • The standard reaction free energy AG. The equilibrium constant K at 25.0 °C. • The cell potential under standard conditions º His results are listed below. Unfortunately, the student may have made some mistakes. Examine his results carefully and tick the box next to the incorrect quantity in each row, if any. C Note: If there is a mistake in a row, only one of the three quantities listed is wrong. Also, you may assume the number of significant digits in each quantity is correct. Also note: for each cell, the number n of electrons transferred per redox reaction is 1. n 1 AA 1 1 Explanation 142. kJ/mol O calculated quantities (Check the box next to any that are wrong.) AG - 50. kJ/mol O - 46. kJ/mol O Check www-awu.aleks.com K 24 7.54 x 10 O…keCovalentActivity.do?locator assignment-take dr.Forms | Office of t... KB Viewing Your Aca... Have Changes in... Scholarship Ameri... bio 1108 chat [Review Topics] [References) Use the References to access important values if needed for this question. Consider the following system at equilibrium where AH = -111 kJ, and K = 0.159, at 7.23 x 102 K: N₂ (9) + 3H₂(g) → 2NH3(g) req If the temperature on the equilibrium system is suddenly decreased: The value of K # 3 Oincreases Odecreases O remains the same E D C The value of Q O is less than Ke Ois greater than Ke O is equal to Ke The reaction must Orun in the forward direction to reestablish equilibrium Orun in the reverse direction to reestablish equilibrium O remain in the current position, since it is already at equilibrium The concentration of H₂ will O increase Odecrease Oremain the same 20 80, Submit Ans Show Hint ry Entire Group $ 888 FA F4 R F V % 5 T Cengage Learning | Cengage Technical Support FS B ^ 6 MacBook Air Y 9 more group…
- Me 03, -78 °C then Zn, CH;CO2HThe dependence constant of the Of a reaction is ntcmparature given by the egoation_EaRT under what condition k the the smallest? as high I and Large Fa b.y hish I and smatt Eg low T and Lage Es and smallCalculate the AG for a reaction with AH = 25.0 kJ mol-1 and AS = 30.0 J K-1 mol-1 that is carried out at 25.0 °C.