how many more $\text{h}^+$ ions are in a solution of $\text{ph}$ 9 than a solution of $\text{ph}$ 10?

a. twice as many.
b. ten times as many.
c. half as many.
d. one tenth as many.
e. all of the above.

Question

how many more $\text{h}^+$ ions are in a solution of $\text{ph}$ 9 than a solution of $\text{ph}$ 10?

a. twice as many.
b. ten times as many.
c. half as many.
d. one tenth as many.
e. all of the above.

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "pH Scale", "Acids and Bases" ], "new_concepts": [], "current_concepts": [ "pH Scale", "Acids and Bases" ] } ## Calculate hydrogen ion concentrations $$ \begin{aligned} &[\text{H}^+] = 10^{-\text{pH}} \ &[\text{H}^+]_{\text{pH } 9} = 10^{-9}\text{ M} \ &[\text{H}^+]_{\text{pH } 10} = 10^{-10}\text{ M} \end{aligned} $$ ## Determine the ratio of concentrations $$ \frac{[\text{H}^+]_{\text{pH } 9}}{[\text{H}^+]_{\text{pH } 10}} = \frac{10^{-9}}{10^{-10}} = 10^1 = 10 $$

(A) Twice as many.

(B) Ten times as many.

(C) Half as many.

(D) One tenth as many.

(E) All of the above.

{ "subject": "Natural Science", "question_type": "Multiple Choice", "knowledge_point": [ "Natural Science", "Chemistry", "pH Scale" ] }

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Question

Explanation:

Calculate hydrogen ion concentrations

Determine the ratio of concentrations

Answer: