How many moles of electrons are transferred for each mole of O2 that reacts? Justify your answer in terms of the balanced equation and the change in oxidation number of oxygen.

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer

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:

Which statement accurately represents the arrangement of electrons in bohr’s atomic model?