Chemistry

Question

Which statement best describes how dynamic equilibrium relates to a saturated solution of sodium chloride? The concentration of the dissolved particles remains constant. No more solid dissolves in a saturated solution. Each second, the amount of solid sodium chloride that dissolves equals the amount of solid sodium chloride that recrystallizes. Each second, solid sodium chloride dissolves and solid sodium chloride recrystallizes.

2 Answer

  • C) Each second, solid sodium chloride dissolves and solid sodium chloride recrystallizes
  • Answer: Each second, the amount of solid sodium chloride that dissolves equals the amount of solid sodium chloride that recrystallizes.

    Explanation: Dynamic equilibrium refers to a equilibrium in which forward reaction and backward reaction proceeds simultaneously and at same rates.

    [tex]NaCl(s)\leftrightarrow Na^++Cl^-[/tex]

    Thus each second, NaCl dissociates to give sodium and chloride ions at the same rate as sodium and chloride ions combine back to give NaCl and in equal amounts.

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