Among molarity and molality which is more accurate
Answers
Answer: Molality
Explanation:
Both molality and molarity are units of concentration.
Both molality and molarity are units of concentration. Molality is used when temperature changes are expected.
Molality (m) and molarity (M) both express the concentration of a chemical solution. Molality is the number of moles of solute per kilogram of solvent. Molarity is the number of moles of solute per liter of solution. If the solvent is water and the concentration of solute is fairly low (i.e., dilute solution), molality and molarity are approximately the same. However, the approximation fails as a solution becomes more concentrated, involves a solvent other than water, or if it undergoes temperature changes that could change the density of the solvent.
In this situations, molality is the preferred method of expressing concentration because the mass of solute and solvent in a solution does not change