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What Is the Hydronium Ion Concentration of a 0

Question 98

Multiple Choice

What is the hydronium ion concentration of a 0. 500 mol L-1 acetic acid solution with Ka = 1.8 × 10-5? The equation for the dissociation of acetic acid is below: CH3CO2H(aq) +H2O(l) ⇌ H3O+(aq) +CH3CO2-(aq)


A) 3.0 × 10-2 mol L-1
B) 4.2 × 10-2 mol L-1
C) 3.0 × 10-3 mol L-1
D) 4.2 × 10-3 mol L-1

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