5. Which of the following, all at 25°C, has the lowest pH ? a) acetic acid, 1.0 mol aqueous solution, K₂ = 1.8 × 10 -5 &
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5. Which of the following, all at 25°C, has the lowest pH ? a) acetic acid, 1.0 mol aqueous solution, K₂ = 1.8 × 10 -5 &
5. Which of the following, all at 25°C, has the lowest pH ? a) acetic acid, 1.0 mol aqueous solution, K₂ = 1.8 × 10 -5 & deionied water. c) hydrochloric acid, 1.0met aqueous solution d) hydrocyanic acid, 1.0 mol e) hydrofluoric acid, 1.0 mb aqueous solution, K₂ = 4.9 × 10 -10 solution, K₂ = 7-1×10-4