If hydrochloric acid has a [H+] of 1.2 x 10-2 M, what is the pH? 1.9 0 1 1.2 O 8
2 answers:
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Answer:
a)
b)
Explanation:
a) The reaction:
The free-energy expression:
The element wich is reduced is the Fe and the one that oxidates is the Mg:
The electrons transfered (n) in this reaction are 2, so:
b) If you have values of enthalpy and enthropy you can calculate the free-energy by:
with T in Kelvin