Multiple choice

If 10 mL of 0.1 M aqueous solution of NaCl is divided into 1000 drops of equal volume, what will be the concentration of one drop?

  1. 0.10 M

  2. 0.01 M

  3. 0.001 M

  4. 0.0001 M
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A Correct answer
Explanation

Concentration is an intensive property. Dividing a solution into smaller drops does not change the concentration of the solute in the solvent.

AI explanation

When a solution is divided into smaller portions, its concentration, which depends on the amount of solute per unit volume, remains unchanged. Dividing the aqueous solution into drops of equal volume does not add or remove any solute, so the molarity stays exactly the same. Therefore, the concentration of one drop is 0.10 M.

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