Respuesta :

Answer:

3M

Explanation:

Because HCl and NaCl do not react with each other, the final number of the Cl⁻ ions is equal to the sum of the ions of each starting reagent:

  • HCl → H⁺ + Cl⁻

Cl⁻ moles from HCl ⇒0.100 L * 1 M = 0.1 moles Cl⁻

  • NaCl → Na⁺ + Cl⁻

Cl⁻ moles from HCl ⇒0.100 L * 5 M = 0.5 moles Cl⁻

  • Total Cl⁻ moles = 0.1 + 0.5 = 0.6 moles Cl⁻

We add up the volumes from each solution:

  • Final volume = 0.1 L + 0.1 L = 0.2 L

And finally calculate the final molarity of Cl⁻ ions:

  • Final molarity = 0.6 mol / 0.2 L = 3M