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How to Calculate Osmolarity.
Chemistry

How to Calculate Osmolarity.

Rosemary Njeri

The concentration of osmotic-ally active particles in solution, which may be quantitatively expressed in osmoles of solute per liter of solution.

Water moves across a membrane from a lower osmolarity to a higher osmolarity.

Formula to calculate osmolarity.

How to Calculate Osmolarity.

Example:

Suppose you dissolved a 2 molar magnesium chloride compound in water.

The chemical formula for magnesium chloride is MgCl₂, therefore it means, when you dissolve it in water it dissociates into 2 particles of magnesium and one particle of chloride. Therefore, it has 3 particles.

How to Calculate Osmolarity.

Therefore, the osmolarity is 6 osmol.

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