What does pH measure?

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Study for the Tennessee Master Barber Exam. Prepare with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

What does pH measure?

Explanation:
pH measures how acidic or basic (alkaline) a substance is. It reflects hydrogen ion concentration: more hydrogen ions mean a lower pH (more acidic), fewer hydrogen ions mean a higher pH (more alkaline). The scale typically runs from 0 to 14, with 7 being neutral; below 7 is acidic, above 7 is basic. The scale is logarithmic, so each unit represents about a tenfold change in hydrogen ion concentration. In hair care, this matters because products with the right pH help keep the hair cuticle closed and scalp balanced, while overly alkaline products can swell and lift the cuticle, potentially causing damage.

pH measures how acidic or basic (alkaline) a substance is. It reflects hydrogen ion concentration: more hydrogen ions mean a lower pH (more acidic), fewer hydrogen ions mean a higher pH (more alkaline). The scale typically runs from 0 to 14, with 7 being neutral; below 7 is acidic, above 7 is basic. The scale is logarithmic, so each unit represents about a tenfold change in hydrogen ion concentration. In hair care, this matters because products with the right pH help keep the hair cuticle closed and scalp balanced, while overly alkaline products can swell and lift the cuticle, potentially causing damage.

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