talate the value of the reaction quotient, Q for the galvanic cell expressed usi
ID: 591957 • Letter: T
Question
talate the value of the reaction quotient, Q for the galvanic cell expressed using shorthand Caation below. Use the balanced chemical equation that has the smallest whole number stoichiometric coefficients 7) 7) Zn(s) IZn2+(aq, 0.0100 M) Ag (g, 1.20 M)Ag(s) A) 144 B) 120 C)694 10-3 D) 8.33 10-3 8) Ag (a)+e-Ag(s) E"=+0.800 V E"= +0.071 V E" = +1.066 V AgBr(s) + e-Ag(s) + Br-(a) 8) Use some of the data above to calculate Ksp at 25'C for AgBr A) 2.4 x 10-34 B) 4.9 10-13 63 10-2 D) 1.9 10-15 9) Which statement is true about the formation of CCO (s) from CO(s) and (g) at 100 am? 9) A) The reaction is spontaneous at high temperatures B) The reaction is not spontaneous at any temperature C) The reaction is spontaneous at low temperatures. D) The reaction is spontaneous at all temperatures. 10) What is the standard cell potential for the reaction below? 10) The standard reduction potential is-0.13 V for the Pb2 iPb hall-cell and +1.09 V for the Br2/Br- half-cell. A) -0.95 V B)+0.95 V C)-1.22 V D) +122 V 11) If Q increases, A) G increases and the reaction becomes more spontaneous B) G decreases and the reaction becomes less spontaneous. C) G increases and the reaction becomes less spontaneous. D) AG decreases and the reaction becomes more spontaneous 12) If G° is negative for a reaction, 12) A) KExplanation / Answer
7)
The reaction taking place os:
Zn(s) + 2 Ag+ (aq) —> Zn+ (aq) + 2 Ag (s)
Qsp = [Zn2+]/[Ag+]^2
= (0.0100)/(1.20)^2
= 6.94*10^-3
Answer: C
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