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Solutions & Colligative Properties

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Solutions & Colligative Properties

Parts per Billion

A concentration unit expressing one part of solute per thousand million parts of solution.

ppb = (m_solute / m_solution) × 10⁹ ppb Solutions & Colligative Properties

Parts per Million

A concentration unit expressing one part of solute per million parts of solution by mass or volume.

ppm = (m_solute / m_solution) × 10⁶ ppm Solutions & Colligative Properties

Positive Deviation

Behaviour in which a solution exerts a higher vapour pressure than Raoult's law predicts.

p > x p° Pa