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  2. Prism correction - Wikipedia

    en.wikipedia.org/wiki/Prism_correction

    Thus a prism of 1 Δ would produce 1 cm visible displacement at 100 cm, or 1 meter. This can be represented mathematically as: = ⁡ where is the amount of prism correction in prism dioptres, and is the angle of deviation of the light.

  3. Square antiprismatic molecular geometry - Wikipedia

    en.wikipedia.org/wiki/Square_antiprismatic...

    In chemistry, the square antiprismatic molecular geometry describes the shape of compounds where eight atoms, groups of atoms, or ligands are arranged around a central atom, defining the vertices of a square antiprism. [1] This shape has D 4d symmetry and is one of the three common shapes for octacoordinate transition metal complexes, along ...

  4. Benesi–Hildebrand method - Wikipedia

    en.wikipedia.org/wiki/Benesi–Hildebrand_method

    This can be described by the following equation: [ HG ] = [ H ] 0 K a [ G ] 1 + K a [ G ] {\displaystyle [{\ce {HG}}]={\frac {[{\ce {H}}]_{0}K_{\rm {a}}[{\ce {G}}]}{1+K_{\rm {a}}[{\ce {G}}]}}} By substituting the binding isotherm equation into the previous equation, the equilibrium constant K a can now be correlated to the change in absorbance ...

  5. Square antiprism - Wikipedia

    en.wikipedia.org/wiki/Square_antiprism

    Specific methods of distributing the points include, for example, the Thomson problem (minimizing the sum of all the reciprocals of distances between points), maximising the distance of each point to the nearest point, or minimising the sum of all reciprocals of squares of distances between points.

  6. Volume correction factor - Wikipedia

    en.wikipedia.org/wiki/Volume_Correction_Factor

    The formula for Volume Correction Factor is commonly defined as: V C F = C T L = exp ⁡ { − α T Δ T [ 1 + 0.8 α T ( Δ T + δ T ) ] } {\displaystyle VCF=C_{TL}=\exp\{-\alpha _{T}\Delta T[1+0.8\alpha _{T}(\Delta T+\delta _{T})]\}}

  7. UNIQUAC - Wikipedia

    en.wikipedia.org/wiki/UNIQUAC

    UNIQUAC. In statistical thermodynamics, UNIQUAC (a portmanteau of uni versal qua si c hemical) is an activity coefficient model used in description of phase equilibria. [1] [2] The model is a so-called lattice model and has been derived from a first order approximation of interacting molecule surfaces.

  8. Specific rotation - Wikipedia

    en.wikipedia.org/wiki/Specific_rotation

    In this case, a correction factor in the numerator is necessary:: 248 : 123 [ α ] λ T = 100 × α l × c {\displaystyle [\alpha ]_{\lambda }^{T}={\frac {100\times \alpha }{l\times c}}} When using this equation, the concentration and the solvent may be provided in parentheses after the rotation.

  9. Esophoria - Wikipedia

    en.wikipedia.org/wiki/Esophoria

    Esophoria is an eye condition involving inward deviation of the eye, usually due to extra-ocular muscle imbalance. It is a type of heterophoria. Cause. Causes include: Refractive errors; Divergence insufficiency; Convergence excess; this can be due to nerve, muscle, congenital or mechanical anomalies.

  10. Electrochemical potential - Wikipedia

    en.wikipedia.org/wiki/Electrochemical_potential

    Definition and usage. In generic terms, electrochemical potential is the mechanical work done in bringing 1 mole of an ion from a standard state to a specified concentration and electrical potential. According to the IUPAC definition, [4] it is the partial molar Gibbs energy of the substance at the specified electric potential, where the ...

  11. Standard hydrogen electrode - Wikipedia

    en.wikipedia.org/wiki/Standard_hydrogen_electrode

    The hydrogen electrode is based on the redox half cell corresponding to the reduction of two hydrated protons, 2H+(aq), into one gaseous hydrogen molecule, H2 (g). General equation for a reduction reaction: The reaction quotient ( Qr) of the half-reaction is the ratio between the chemical activities ( a) of the reduced form (the reductant, ared ...