A solution containing one mole of a solute dissolved in 1000 g of solvent is a

A solution containing one mole of a solute dissolved in 1000 g (1 kg) of solvent is defined as a molal solution. Molality (m) is specifically defined as the number of moles of solute per kilogram of solvent [t1][t2][t3]. This differs from a molar solution, which is defined as one mole of solute dissolved in one liter of total solution [t1][t7]. Since 1000 grams is equivalent to 1 kilogram [t5], the concentration described is exactly 1 molal. Unlike molarity, molality is independent of temperature because it is based on the mass of the solvent rather than the volume of the solution, which can fluctuate with thermal expansion [t1][t8]. Other options like normal solutions refer to gram-equivalents per liter [t5][t6], and saturated solutions refer to the maximum amount of solute a solvent can dissolve at a given temperature [c1][t9].

Sources

1. [1] https://www.sciencedirect.com/topics/engineering/molality
2. [2] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 9: The Amazing World of Solutes, Solvents, and Solutions > Some discussion points > p. 137