Respuesta :

Answer:

pH = 1.33

Explanation:

Because HCl is a strong acid, each mole of HCl will completely dissociate into H⁺ and Cl⁻ species.

Now we calculate the molar concentration (molarity) of H⁺:

  • Molarity = moles / volume

(750 mL ⇒ 750 / 1000 = 0.750 L)

  • Molarity = 0.035 moles / 0.750 L
  • Molarity = 0.0467 M

Then we calculate the pH of the solution:

  • pH = -log [H⁺]
  • pH = -log (0.0467 M)
  • pH = 1.33

If 0.035 moles of HCl is dissolved in enough water to produce 750 ml of solution, then the pH will be 1.33

What is pH?

pH number tells how acidic or basic the liquid is.

HCl is a strong acid, its molecules will fully dissociate

H+ and Cl-

Now, calculate the molarity

[tex]Molarity = \dfrac{moles}{ volume} \\\\Molarity = \dfrac{0.035\; moles }{ 0.750 L} =0.0467 M[/tex]

Calculate the pH of the solution

[tex]\rm pH = -log [H^+]\\ pH = -log (0.0467 M)\\ pH = 1.33[/tex]

 

Thus, the pH of the solution is 1.33.

Learn more about pH

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