In this lab, the hydrochloric acid solution was the ___1___ because its concentration was not known. However, the sodium hydroxide solution in the buret was the __2___ because its concentration was known.

ANSWER:
1.) analyte
2.) titrant

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: