Molality of Glucose: 18 g in 1 kg Water
Find the molality of glucose (molar mass 180.16 g/mol) when 18 g is dissolved in 1000 g of water.
How to use this tool
- Enter solute mass, molar mass of solute and solvent mass in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your molality and the full breakdown beneath it.
Dissolving 18 g of glucose in 1 kg of water is a classic textbook example for calculating molality.
Frequently asked questions
- How is molality different from molarity?
- Molarity (mol/L) is moles per litre of solution; molality (mol/kg) is moles per kilogram of solvent. Molality is temperature-independent because mass doesn't change with temperature, while volume does.
- What are colligative properties?
- Properties that depend only on the number of solute particles, not their identity: boiling-point elevation, freezing-point depression, osmotic pressure, vapour pressure lowering. Note: the shown Kb/Kf values assume non-electrolyte solutes.