Масса смеси, состоящей из Na₂SO₄ и H₂SO₄ с равным количеством вещества, равна 24 g. Сколько g Na₂SO₄ в этой смеси?

  1. 14,2
  2. 7,1
  3. 28,4
  4. 43,2
23 / 69 (33%)
Question 23 of 69
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