How do you calculate osmolarity from osmolality?

1 Answer
anor277
Aug 14, 2018

Consider the definitions...

Explanation:

#"Osmolarity"="Moles of ions in solution"/"Litres of solution"#

#"Osmolality"="Moles of ions in solution"/"Kilograms of solvent"#

For most DILUTE solutions in WATER, #"Osmolarity"="Osmolality"#...but here we are given no data with respect to the composition of the solutions or their respective densities...so we are in no position to assess the comparison....

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