👉 A determined fluid, often referred to as a solution or a specific type of fluid like an aqueous solution in chemistry, is a homogeneous mixture where one substance (the solute) is uniformly dispersed within another (the solvent). In a determined fluid, the concentration of the solute is precisely known and fixed, typically expressed in molarity (M), which indicates the number of moles of solute per liter of solution. This precise measurement ensures consistency and reproducibility in experiments, making it a crucial component in various scientific and industrial applications where exact chemical compositions are required.