Question

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answen the sers the question. 6) A particular 12V battery is bas battery is based on a reaction having a standard cell potential, E 1.92 V. What happens when the battery "dies? A) E° - 12 V and E = 12 V B) E = +1.88 V and E= 12 V C) E = +1.88 V and E=OV D) E-12 V and E-OV ) 1) The solubility of manganeso(II) fluoride in water is 66 lat 400C and 4.8 g/L at 100'C. Based on these data, what is the sign of AH and AS for the process below? 7) - MnF2(s) - Mn2+(44) + 2 F-(aq) A) AH is negative and AS is definitely negative. B) AH is positive but the sign of AS cannot be determined from this information C) AH® is negative but the sign of AS cannot be determined from this information D) AH is positive and AS is definitely negative. 8) 8) In figure (1) below argon atoms, represented by unshaded spheres, and neon atoms, represented by shaded spheres, are in separate compartments. Figure (2) shows the equilibrium state of the system after the stopcock separating the two compartments is opened. Assuming that argon and neon behave as ideal gases, what are the signs (+,-, or 0) of AH, AS, and AG for this process? o o ono o O O O O LA OOO 0 0 0 123 A) AH-0, AS = +, AG =- C) AH -AS + AG B) AH-0, AS = -, AG=+ D) AH =+, AS - AG=+ Consider the galvanic cell shown below. Na NO Co 9) What is the shorthand notation for the cell? A) Al(s) I AP+(aq) 1 Co2+(aq) Co(s) C) Co(s) Co2+ (aq) | Al3+ (aq) Al(s) B) Al(s) 1 A13+(aq) 1 Co(s) Co2+ (aq) D) Co(s) Co2+(aq) || Al(s) I AP+(aq)

number 9 please

Answer 1

#9. Out of Al 8 to, tendard electrode potential of co is the and Co will that of Alisove, so Al will se oxidised and reduced in this galvanic cell. Shorthand notation writing ; (oxidation halfexn) (Reduction halfean) oxidised species - Salt bridge - reduced species So for given Galvanic cell & AlC6)) m17?aq) Il cotéag) ICO(S) oxidation half ation half of Reduction half salt bridge is the shorthand notation and this option @ is correct.