Given the balanced chemical reaction: 2Na+ s → Na2s
What is the total number of moles of sodium required to completely react with 0.50 moles of sulfur?

A) 2.0 mol
B) 1.0 mol
C) 0.5 mol
C) 4.0 mol

The data below were determined for the reaction shown below. s2o82– + 3i – (aq) → 2so42– + i3– expt. # [s2o82–] (m) [i –] (m) initial rate 1 0.038 0.060 1.4 × 10 – 5 m/s 2 0.076 0.060 2.8 × 10 – 5 m/s 3 0.076 0.030 1.4 × 10 – 5 m/s the rate law for this reaction must be: