В 500 мл воды растворили 25 г соли. Массовая доля вещества в полученном растворе равна (в %).

  1. 4
  2. 5
  3. 12
  4. 25

📝 Detailed explanation

Масса раствора ≈ 500 г + 25 г = 525 г. ω = 25/525 ≈ 4,8% ≈ 5%.
8 / 20 (40%)
Question 8 of 20
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