Соединение X₄Y₃ имеет абсолютную массу молекулы 4m, причём ω(X) = 75 %. Укажите формулу относительной атомной массы Y.

  1. 3mNₐ
  2. (3/4)mNₐ
  3. mNₐ
  4. (1/3)mNₐ
42 / 76 (55%)
Question 42 of 76
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