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A solution with a hydroxide ion concentration of 4.15 × 10-4 M is ________ and has a hydrogen ion concentration of ________.Group of answer choicesbasic, 2.41 × 10-11 Mbasic, 2.41 × 10-10 Macidic, 2.41 × 10-11 Macidic, 2.41 × 10-10 M

Question

A solution with a hydroxide ion concentration of 4.15 × 10-4 M is ________ and has a hydrogen ion concentration of ________.Group of answer choicesbasic, 2.41 × 10-11 Mbasic, 2.41 × 10-10 Macidic, 2.41 × 10-11 Macidic, 2.41 × 10-10 M

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Solution

The solution is basic with a hydrogen ion concentration of 2.41 × 10-11 M.

Here's the step-by-step explanation:

  1. The hydroxide ion concentration is given as 4.15 × 10-4 M. This is greater than 1.0 × 10-7 M, which is the hydroxide ion concentration of a neutral solution at 25°C. Therefore, the solution is basic.

  2. To find the hydrogen ion concentration, we use the ion product of water, Kw, which is equal to [H+][OH-] and is 1.0 × 10-14 at 25°C.

  3. We rearrange the equation to solve for [H+]: [H+] = Kw / [OH-]

  4. Substituting the given [OH-] and the value of Kw, we get: [H+] = 1.0 × 10-14 / 4.15 × 10-4 M = 2.41 × 10-11 M.

So, the correct answer is "basic, 2.41 × 10-11 M".

This problem has been solved

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