What does molality mean?
Molality is a measure of the concentration of a solution, expressed as the number of moles of solute per kilogram of solvent. It is an important concept in chemistry, particularly in the study of solutions and their properties. Molality is often used to describe the concentration of a solution in a laboratory setting, and it is a key factor in determining the behavior of a solution. In everyday life, molality is not as commonly encountered, but it is still an important concept to understand. For example, in the production of food and beverages, molality is used to ensure that the concentration of ingredients is correct. Overall, molality is a fundamental concept in chemistry that has many practical applications.
noun
The concentration of a solution, expressed as the number of moles of solute per kilogram of solvent.
- 1. The concentration of a solution, expressed as the number of moles of solute per kilogram of solvent.
"The molality of the solution was 0.5 mol/kg, indicating a moderate concentration of solute."
"The molality of the solution was 0.5 mol/kg, indicating a moderate concentration of solute."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of molality
The term 'molality' comes from the Latin words 'mola', meaning 'mill', and 'alitas', meaning 'measure'. It was first used in the late 19th century to describe the concentration of a solution.
Usage notes
Molality is a formal term and is not commonly used in everyday conversation. It is typically used in scientific and technical contexts, such as in chemistry and engineering.