Barrons SAT Subject Test Chemistry, 13th Edition

(Marvins-Underground-K-12) #1

  1. (E) The purpose of the second heating is to ensure that all of the oxygen is
    removed from the silver oxide. Since the mass after the second heating is only
    0.01 g different from that of the first heating, the experimenter could feel
    confident that all of the oxygen has been practically removed because the
    difference is so small.

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