#RA-2534Read AloudCore & AcademicMedium
Concentration
Official Question Material
Prep: 30-40 Seconds
Concentration is an expression of how much solute is dissolved in a solvent in a chemical solution. There are multiple units of concentration. Which unit you use depends on how you intend to use the chemical solution. The most common units are mass percentage, volume percentage, and mole fraction.
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Pearson Official Scoring Guide for Read Aloud
Scored Enabling Skills
- Reading (Content)
- Speaking (Oral Fluency & Pronunciation)
Timing Standard
Response Window: 35-40 Seconds
💡 Examiner Strategy & Pro Tip:Keep a continuous rhythm. Never stop to correct mistakes or repeat words; pausing hurts fluency more than minor mispronunciations.