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  2. Limiting reagent - Wikipedia

    en.wikipedia.org/wiki/Limiting_reagent

    This method is most useful when there are only two reactants. One reactant (A) is chosen, and the balanced chemical equation is used to determine the amount of the other reactant (B) necessary to react with A. If the amount of B actually present exceeds the amount required, then B is in excess and A is the limiting reagent.

  3. Chemical purity - Wikipedia

    en.wikipedia.org/wiki/Chemical_purity

    ACS grade is the highest level of purity, and meets the standards set by the American Chemical Society (ACS). The official descriptions of the ACS levels of purity is documented in the Reagent Chemicals publication, issued by the ACS. [3] [4] It is suitable for food and laboratory uses. Reagent grade is almost as stringent as the ACS grade.

  4. Fundamental resolution equation - Wikipedia

    en.wikipedia.org/.../Fundamental_Resolution_Equation

    3) Changing α is the most effective way of increasing resolution. This can be done by choosing a stationary phase that has a greater difference between k 1 ' and k 2 '. It can also be done in L.C. by using pH to invoke secondary equilibria (if applicable). The fundamental resolution equation is derived as follows:

  5. Defining equation (physical chemistry) - Wikipedia

    en.wikipedia.org/wiki/Defining_equation...

    Theoretical chemistry requires quantities from core physics, such as time, volume, temperature, and pressure.But the highly quantitative nature of physical chemistry, in a more specialized way than core physics, uses molar amounts of substance rather than simply counting numbers; this leads to the specialized definitions in this article.

  6. Molecularity - Wikipedia

    en.wikipedia.org/wiki/Molecularity

    In chemistry, molecularity is the number of molecules that come together to react in an elementary (single-step) reaction [1] and is equal to the sum of stoichiometric coefficients of reactants in the elementary reaction with effective collision (sufficient energy) and correct orientation. [2]

  7. 'Lessons In Chemistry': Differences Between the Book and Show

    www.aol.com/lessons-chemistry-differences...

    The series has some stark differences from the book on which it's based, and some of those departures are likely to have bigger impacts on the story than others.

  8. Curtin–Hammett principle - Wikipedia

    en.wikipedia.org/wiki/Curtin–Hammett_principle

    The Curtin–Hammett principle is a principle in chemical kinetics proposed by David Yarrow Curtin and Louis Plack Hammett.It states that, for a reaction that has a pair of reactive intermediates or reactants that interconvert rapidly (as is usually the case for conformational isomers), each going irreversibly to a different product, the product ratio will depend both on the difference in ...

  9. Here Are All the Big Differences Between the ‘Lessons in ...

    www.aol.com/big-differences-between-lessons...

    Here are all the notable differences between the Love in Chemistry book and TV show. 1. In the book: Elizabeth Zott is a chemist at the Hastings Research Institute, with her own lab technicians ...