Business Requirements. Business requirements for a project are a series of needs that must be fulfilled to achieve a high-level objective. Clear business requirements help ensure that the end result of a project fulfills the stakeholders' needs. Functional Requirements.
Introduction. The solubility of aromatic hydrocarbons, such as toluene, in water, and the decrease in solubility in aqueous salt solutions is an important factor controlling the behavior of hydrocarbons in a variety of environments.. Variation of toluene solubility (expressed as C 0 / C salt, where C 0 =toluene solubility in distilled water, and C salt =toluene solubility in salt solution) versus salt concentration for various inorganic salts.
For example, ionic compounds are insoluble in hexane. It is more difficult to predict the solubility of polar molecular substances than to predict the solubility of ionic compounds and nonpolar molecular substances. Many polar molecular substances are soluble in both water and hexane.For example, ethanol is miscible with both water and hexane. The following generalization is helpful: Substances composed of small polar molecules, such as acetone and ethanol, are usually soluble in water.hen you place a non-polar molecule in a polar solvent (like oil in water) the molecules try to minimize surface contact between them. (like you and a guy with a cold on an elevator). This is actually the basis for the cells in our bodies.