Chapter 16, Problem 39A

Interpretation Introduction

Interpretation:

The number of HCl molecules remains in the solution has to be calculated.

Concept Introduction:

All strong acidsare strong electrolytes. They completely dissociate to give corresponding ions in the solution and the concentration of the acid is the concentration of H+ ions.

6.022 × 10²³molecules are present in 1 mole of a substance. 6.022 × 10²³is known as Avogadro's number.

Answer to Problem 39A

No HCl molecules will remain in the solution.

Explanation of Solution

HClis a strong electrolyte. It completely dissociates to give H+ ion and Cl- ion in the solution and the concentration of the acid is the concentration of H+ ions.No HCl molecules will remain in the solution.

  $\mathrm{HCl}\to H^{+}+C{l}^{-}$