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Author Question: What is the relationship between G and the GF for the reaction below? MgF2(s) Mg2+(aq) + 2 F-(aq) (Read 64 times)

nautica902

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Question 1

ΔG = ΔG° for a reaction
◦ at STP.
◦ if Q = 1.
◦ if Q = K.
◦ at the start of the reaction.

Question 2

What is the relationship between ΔG and the ΔG°F for the reaction below?

MgF2(s) → Mg2+(aq) + 2 F-(aq)


◦ ΔG = {ΔG°f [Mg2+ (aq)] + 2 ΔG°f [F- (aq)] - ΔG°f [MgF2 (s)]} + RT ln ([Mg2+] [F-]2/[MgF2])
◦ ΔG = {ΔG°f [Mg2+ (aq)] + 2 ΔG°f [F- (aq)] - ΔG°f [MgF2 (s)]} + RT ln Ksp
◦ ΔG = {ΔG°f [Mg2+ (aq)] + 2 ΔG°f [F- (aq)] - ΔG°f [MgF2 (s)]} + RT ln ([Mg2+] [F-])2)
◦ ΔG = {ΔG°f [Mg2+ (aq)] + 2 ΔG°f [F- (aq)]} + RT ln ([Mg2+] [F-]2)


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Marked as best answer by nautica902 on Feb 15, 2020

mariahkathleeen

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nautica902

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Reply 2 on: Feb 15, 2020
Wow, this really help


diana chang

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Reply 3 on: Yesterday
Gracias!

 

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