Math

QuestionWhich of the following statements about basic solutions is true?
Multiple Choice Basic solutions have more of H+\mathrm{H}^{+}than OH . Basic solutions have a pH under 7. Basic solutions more OH\mathrm{OH}^{-}than H+\mathrm{H}+. Basic solutions have equal concentrations of H+\mathrm{H}+ and OH\mathrm{OH}^{-}.

Studdy Solution

STEP 1

1. Basic solutions, also known as alkaline solutions, are characterized by their pH and ion concentrations.
2. The concentration of hydrogen ions (H+\mathrm{H}^+) and hydroxide ions (OH\mathrm{OH}^-) determines the pH of a solution.
3. The pH scale ranges from 0 to 14, where a pH below 7 is acidic, a pH of 7 is neutral, and a pH above 7 is basic.
4. The relationship between H+\mathrm{H}^+ and OH\mathrm{OH}^- in water is described by the ion product of water: Kw=[H+][OH]=1014K_w = [\mathrm{H}^+][\mathrm{OH}^-] = 10^{-14} at 25°C.

STEP 2

1. Define the characteristics of a basic solution.
2. Analyze the given statements in the context of basic solutions.
3. Determine the correct statement based on the properties of basic solutions.

STEP 3

Define the characteristics of a basic solution: A basic solution has a pH greater than 7, indicating a lower concentration of hydrogen ions (H+\mathrm{H}^+) compared to hydroxide ions (OH\mathrm{OH}^-).

STEP 4

Analyze the first statement: "Basic solutions have more of H+\mathrm{H}^{+} than OH." This statement is false because basic solutions have more OH\mathrm{OH}^- than H+\mathrm{H}^+.

STEP 5

Analyze the second statement: "Basic solutions have a pH under 7." This statement is false because basic solutions have a pH greater than 7.

STEP 6

Analyze the third statement: "Basic solutions have more OH\mathrm{OH}^{-} than H+\mathrm{H}+." This statement is true because basic solutions are characterized by a higher concentration of OH\mathrm{OH}^- compared to H+\mathrm{H}^+.

STEP 7

Analyze the fourth statement: "Basic solutions have equal concentrations of H+\mathrm{H}+ and OH\mathrm{OH}^{-}." This statement is false because only neutral solutions have equal concentrations of H+\mathrm{H}^+ and OH\mathrm{OH}^-.

STEP 8

Determine the correct statement based on the properties of basic solutions:
The correct statement is: "Basic solutions have more OH\mathrm{OH}^{-} than H+\mathrm{H}^+."

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