Chemistry 112

Step 1:

H₂SO₄(aq) + H₂O(l) → H₃O⁺(aq) + HSO₄^–(aq)

0.0050 M H₂SO₄ generates 0.0050 M H₃O⁺ and 0.0050 M HSO₄^–

Step 2:

HSO₄^–(aq) + H₂O(l) → ← H₃O⁺(aq) + SO₄^2–(aq)

K_a = [H₃O⁺]_e[SO₄^2–]_e                             [HSO₄^–]_e = 1.1×10^–2

Initial0.0050 0.0050 0

Change–x +x +x

Equilibrium0.0050 – x 0.0050 + x x

 

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