An acidic solution at 25°C will have a hydronium ion concentration ________ and a pH value ________.Group of answer choices[H3O+] > 1 × 10-7 M, pH > 7.00[H3O+] > 1 × 10-7 M, pH < 7.00[H3O+] < 1 × 10-7 M, pH > 7.00[H3O+] < 1 × 10-7 M, pH < 7.00
Question
An acidic solution at 25°C will have a hydronium ion concentration ________ and a pH value ________.Group of answer choices[H3O+] > 1 × 10-7 M, pH > 7.00[H3O+] > 1 × 10-7 M, pH < 7.00[H3O+] < 1 × 10-7 M, pH > 7.00[H3O+] < 1 × 10-7 M, pH < 7.00
Solution
The correct answer is [H3O+] > 1 × 10-7 M, pH < 7.00.
Here's why:
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An acidic solution has a higher concentration of hydronium ions (H3O+) than a neutral solution. In a neutral solution, the concentration of H3O+ is 1 × 10-7 M. Therefore, in an acidic solution, [H3O+] > 1 × 10-7 M.
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The pH scale measures how acidic or basic a substance is. It ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic, and a pH greater than 7 is basic. Therefore, an acidic solution will have a pH < 7.00.
Similar Questions
An acidic solution at 25°C hasGroup of answer choices[H3O+] > 1 × 10-7 M > [OH-].[H3O+] = [OH-] > 1 × 10-7 M.[H3O+] < 1 × 10-7 M > [OH-].[H3O+] > [OH-] > 1 × 10-7 M.
If the hydronium ion (H3O+) concentration of an aqueous solution at 25°C is 5 × 10−6 M, what is the hydroxide ion (OH–) concentration?
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The pH of a solution is 5.67 at 25 °C. Calculate the pOH of this solution at 25 °C.
pH of 0.01 M KOH solution at 25°C will be
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