Barrons SAT Subject Test Chemistry, 13th Edition

(Marvins-Underground-K-12) #1


  1. (C) The formula (mass) is the total of (Ca =) 40 + (2N =) 28 + (6O =) 96, or




  2. Since oxygen is 96 amu of 164 total, the percentage is 96/164 × 100 =
    58.5%.



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