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  2. Dilution (equation) - Wikipedia

    en.wikipedia.org/wiki/Dilution_(equation)

    The equation can only be applied when the purged volume of vapor or gas is replaced with "clean" air or gas. For example, the equation can be used to calculate the time required at a certain ventilation rate to reduce a high carbon monoxide concentration in a room.

  3. Separation process - Wikipedia

    en.wikipedia.org/wiki/Separation_process

    A separation process is a method that converts a mixture or a solution of chemical substances into two or more distinct product mixtures, [1] a scientific process of separating two or more substances in order to obtain purity. At least one product mixture from the separation is enriched in one or more of the source mixture's constituents.

  4. Solvation - Wikipedia

    en.wikipedia.org/wiki/Solvation

    Solvation or dissolution is a kinetic process and is quantified by its rate. Solubility quantifies the dynamic equilibrium state achieved when the rate of dissolution equals the rate of precipitation. The consideration of the units makes the distinction clearer. The typical unit for dissolution rate is mol/s.

  5. Enthalpy change of solution - Wikipedia

    en.wikipedia.org/wiki/Enthalpy_change_of_solution

    The integral heat of dissolution is defined as a process of obtaining a certain amount of solution with a final concentration. The enthalpy change in this process, normalized by the mole number of solute, is evaluated as the molar integral heat of dissolution. Mathematically, the molar integral heat of dissolution is denoted as:

  6. Aqueous solution - Wikipedia

    en.wikipedia.org/wiki/Aqueous_solution

    [1] [2] As water is an excellent solvent and is also naturally abundant, it is a ubiquitous solvent in chemistry. Since water is frequently used as the solvent in experiments, the word solution refers to an aqueous solution, unless the solvent is specified. [3] [4] A non-aqueous solution is a solution in which the solvent is a liquid, but is ...

  7. Isotope dilution - Wikipedia

    en.wikipedia.org/wiki/Isotope_dilution

    This simplified equation was first proposed by De Bievre and Debus numerically [4] and later by Komori et al. [6] and by Riepe and Kaiser analytically. [7] It has been noted that this simple expression is only a general approximation and it does not hold, for example, in the presence of Poisson statistics [ 8 ] or in the presence of strong ...

  8. Pregnant Indiana Woman, 25, Has Been Missing for More Than a ...

    www.aol.com/pregnant-indiana-woman-25-missing...

    More than a month after Emma Baum went missing, her family is still looking for answers. The 25-year-old woman was last seen on Oct. 10 in Gary, Indiana, on 25th Avenue and Connecticut Street, ABC ...

  9. Dissociation (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Dissociation_(chemistry)

    Dissociation in chemistry is a general process in which molecules (or ionic compounds such as salts, or complexes) separate or split into other things such as atoms, ions, or radicals, usually in a reversible manner.

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