Assume That Acid Rain Has Lowered the PH of a Particular

question 32

Multiple Choice

Assume that acid rain has lowered the pH of a particular lake to pH 5.0. What is the hydroxide ion concentration of this lake?

• A) 1 × 10⁻⁹ mol of hydroxide ions per liter of lake water
• B) 1 × 10⁻⁵ mol of hydroxide ions per liter of lake water
• C) 5.0 M hydroxide ion
• D) 5.0 × 10⁻⁵ mol of hydroxide ions per liter of lake water

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