in Water and Waste Water Quality and Treatment recategorized by
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A water sample has a pH of $9.25$. The concentration of hydroxyl ions in the water sample is

  1. $10^{-9.25}$ moles/L
  2. $10^{-4.75}$ mmoles/L
  3. $0.302$ mg/L
  4. $3.020$ mg/L
in Water and Waste Water Quality and Treatment recategorized by
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