How is the dilution factor defined?

How is the dilution factor defined?

• A. Final Volume / Aliquot Volume
• B. Aliquot Volume / Final Volume
• C. Final Volume + Aliquot Volume
• D. Final Volume - Aliquot Volume

Answer: (A)

Understanding dilution factor starts with recognizing that it shows how much the sample is diluted. It is defined as the final volume divided by the aliquot (the amount of sample used) volume. This ratio tells you how many times the original concentration has been reduced. For example, taking 1 mL of sample and bringing it to a final volume of 10 mL yields a dilution factor of 10, meaning the concentration is diluted tenfold. The other ways to combine volumes, like summing or subtracting them, or taking the reciprocal, don’t represent how much the concentration has been reduced in typical dilution calculations.

Understanding dilution factor starts with recognizing that it shows how much the sample is diluted. It is defined as the final volume divided by the aliquot (the amount of sample used) volume. This ratio tells you how many times the original concentration has been reduced. For example, taking 1 mL of sample and bringing it to a final volume of 10 mL yields a dilution factor of 10, meaning the concentration is diluted tenfold. The other ways to combine volumes, like summing or subtracting them, or taking the reciprocal, don’t represent how much the concentration has been reduced in typical dilution calculations.