In: Chemistry
1.Will magnesium metal displace Al3+ ion from an aqueous solution
Al3+(aq) + 3e- --> Al(s) Eo=1.68 V
Mg2+(aq) + 2e- --> Mg(s) Eo= -2.36 V
a) No, since Eo cell is positive.
b) Yes, since Eo cell is negavtive.
c) No, the reverse reaction is spontaneous
d) Yes, since ΔGo is negavtive.
2.The value of Kp for the reaction at 298k.
2SO2(g) + 2NO2(g) --> 2SO3(g) + 2NO(g)
is 0.25. The value of Kp at the same temperature for the reaction
SO2(g) + NO2(g) --> SO3(g) + NO(g)
a) 0.25
b)0.063
c)0.12
d)0.50