Question detail
How does a pH meter work to measure the pH of a solution?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Reactions of acids
Question
How does a pH meter work to measure the pH of a solution?
Answer
A pH meter measures the voltage difference between two electrodes placed in the solution, which correlates to the concentration of hydrogen ions present. This voltage is then converted into a pH value, providing an accurate measurement of the solution's acidity or alkalinity.
Explanation
This answer is strong as it describes the operational principle of a pH meter and its relationship to hydrogen ion concentration. The question assesses the understanding of the technical aspects of pH measurement.
Common mistake
Misunderstanding pH Measurement Methods
Students often confuse the use of universal indicators and pH meters, thinking they measure pH in the same way.
Clarify that universal indicators provide a color change to indicate pH levels, while pH meters give a numerical value for pH directly.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.