chiomao4435 chiomao4435
  • 10-09-2020
  • Chemistry
contestada

What is the pH of a 0.045 M H2SO4 solution?

Respuesta :

jufsanabriasa
jufsanabriasa jufsanabriasa
  • 15-09-2020

Answer:

pH = 1.05

Explanation:

A solution of sulfuric acid, H₂SO₄, dissociates in water as follows:

H₂SO₄ → 2H⁺ + SO₄²⁻

That means per mole of H₂SO₄ you will have 2 moles of H⁺

pH = -log [H⁺]

As [H₂SO₄] = 0.045M and [H⁺] = 2×[H₂SO₄]

[H⁺] = 0.090M

pH = -log [0.090M]

pH = 1.05

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