Which statement best describes the difference between a substance with a pH of 3.0 and a substance with a pH of 6.0?(1 point) Responses The substance with the lower pH has twice as many hydrogen ions per volume of water. The substance with the lower pH has twice as many hydrogen ions per volume of water. The substance with the higher pH has 1,000 times as many hydrogen ions per volume of water. The substance with the higher pH has 1,000 times as many hydrogen ions per volume of water. The substance with the lower pH has 1,000 times as many hydrogen ions per volume of water. The substance with the lower pH has 1,000 times as many hydrogen ions per volume of water. The substance with the higher pH has twice as many hydrogen ions per volume of water.

Question

Which statement best describes the difference between a substance with a pH of 3.0 and a substance with a pH of 6.0?(1 point) Responses  The substance with the lower pH has twice as many hydrogen ions per volume of water.  The substance with the lower pH has twice as many hydrogen ions per volume of water.   The substance with the higher pH has 1,000 times as many hydrogen ions per volume of water.  The substance with the higher pH has 1,000 times as many hydrogen ions per volume of water.   The substance with the lower pH has 1,000 times as many hydrogen ions per volume of water. The substance with the lower pH has 1,000 times as many hydrogen ions per volume of water.  The substance with the higher pH has twice as many hydrogen ions per volume of water.

GPT-4o mini · Answer

The correct statement is: **The substance with the lower pH has 1,000 times as many hydrogen ions per volume of water.** A pH scale is logarithmic, meaning that each whole number change in pH represents a tenfold change in hydrogen ion concentration. A pH of 3.0 is 3 units lower than a pH of 6.0, which corresponds to $10^3$ or 1,000 times more hydrogen ions in the substance with the lower pH (pH 3.0).