Every increase of one pH unit indicates ______________.

Question

BlackTom AI · Accepted Answer

Consider what a pH unit change means for hydrogen ion concentration. A higher pH indicates fewer hydrogen ions in solution, since pH is a log scale of [H+].
Option 1 asserts that there is an increase in acidity with a pH rise; in reality, increasing pH reduces acidity, so this is inconsistent with the definition of pH.
Option 2 claims there are 10 times more hydrogen ions when pH goes up by 1 unit; this contradicts the fundamental relationship between pH and [H+], where increasing pH lowers [H+].
Option 3 states there are 10 times less hydrogen ions in solution for each unit increase in pH. This aligns with the log-scale behavior: a one-unit increase corresponds to a tenfold decrease in [H+].
Option 4 suggests 10 times less hydroxide ions, which would be true if the statement were about pOH or basicity, but the prompt is about hydrogen ions; thus this option misinterprets the effect on [H+].

Every increase of one pH unit indicates ______________.

View Explanation

Log in for full answers

Similar Questions

Rainwater near a coal-fired power station has a pH of 3.7. Normal rainwater has a pH of 5.5.How many times greater is the concentration of H⁺ ions in the polluted rainwater compared to normal rainwater?

Rainwater near a coal-fired power station has a pH of 3.7. Normal rainwater has a pH of 5.5.How many times greater is the concentration of H⁺ ions in the polluted rainwater compared to normal rainwater?

Solution 1 has a pH of 6.4, Solution 2 has a pH of 8.1, and Solution 3 has a pH of 4.8. Which solution has the highest concentration of hydrogen ions ( H + H + )?

pH

A student measures the pH of two solutions. Solution A has a pH of 4, and Solution B has a pH of 6. Based on this information, which of the following statements is correct?

The hydrogen ion concentration, [H+] in a solution with pH 10 is ________ than the [H+] in a solution with pH 13.

The concentration of H+ ions in a solution with a pH value of 4 is how many times as great as the concentration of H+ ions in a solution with a pH value of 7 ?

The arrow in the diagram right represents the approximate pH of which of the following?

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler