A sample of NaCl is found to have a mass 580g .How many moles are in this sample? [ Molar mass of NaCl = 58.5g/mol]

Answerthe half-reaction having the greatest tendency to occur at the anode:     i₂(aq) + 2e⁻  ⇄ 2i⁻  ;   e = +0.53 v======oxidation occurs at the anode. we must therefore find the half-reaction with the greatest tendency to oxidize.the given values of e are reduction potentials (the form of the half-reactions are of reduction).the lower the reduction potential, the higher the potential to oxidize. the half-cell with the lowest reduction potential will have the greatest tendency to oxidize at the anode.the half-reaction having the greatest tendency must be    i₂(aq) + 2e⁻  ⇄ 2i⁻    e = +0.53 vbecause its reduction potential is the lowest out of the three.

Ithink its called the coefficent.

C. 6.94 is the correct answer y'all 

Ithink scientist use creativity by asking questions about the natural world by using prior knowledge to solve problems.