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  2. Empirical formula - Wikipedia

    en.wikipedia.org/wiki/Empirical_formula

    Glucose (C 6 H 12 O 6), ribose (C 5 H 10 O 5), Acetic acid (C 2 H 4 O 2), and formaldehyde (CH 2 O) all have different molecular formulas but the same empirical formula: CH 2 O.This is the actual molecular formula for formaldehyde, but acetic acid has double the number of atoms, ribose has five times the number of atoms, and glucose has six times the number of atoms.

  3. Empirical formulas - Wikipedia

    en.wikipedia.org/?title=Empirical_formulas&...

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  4. Birks' law - Wikipedia

    en.wikipedia.org/wiki/Birks'_Law

    Birks' law [1] [2] (named after British physicist John B. Birks) [3] is an empirical formula for the light yield per path length as a function of the energy loss per path length for a particle traversing a scintillator, and gives a relation that is not linear at high loss rates.

  5. C6H14N4O2 - Wikipedia

    en.wikipedia.org/wiki/C6H14N4O2

    Download QR code; Print/export Download as PDF; ... The molecular formula C 6 H 14 N 4 O 2 (molar mass: 174.20 g/mol, exact mass : 174.1117 u) may refer ...

  6. Viscosity models for mixtures - Wikipedia

    en.wikipedia.org/wiki/Viscosity_models_for_mixtures

    The gas viscosity model of Chung et alios (1988) [5] is combination of the Chapman–Enskog(1964) kinetic theory of viscosity for dilute gases and the empirical expression of Neufeld et alios (1972) [6] for the reduced collision integral, but expanded empirical to handle polyatomic, polar and hydrogen bonding fluids over a wide temperature ...

  7. August Kekulé - Wikipedia

    en.wikipedia.org/wiki/August_Kekulé

    Some chemists, notably Hermann Kolbe, heavily criticized the use of structural formulas that were offered, as he thought, without proof. However, most chemists followed Kekulé's lead in pursuing and developing what some have called "classical" structure theory, which was modified after the discovery of electrons (1897) and the development of ...

  8. Formula - Wikipedia

    en.wikipedia.org/wiki/Formula

    A molecular formula enumerates the number of atoms to reflect those in the molecule, so that the molecular formula for glucose is C 6 H 12 O 6 rather than the glucose empirical formula, which is CH 2 O. Except for the very simple substances, molecular chemical formulas generally lack needed structural information, and might even be ambiguous in ...

  9. Dictionary of natural phenols and polyphenols molecular formulas

    en.wikipedia.org/wiki/Dictionary_of_natural...

    Natural polyphenols molecular formulas represent a class of natural aromatic organic compounds in which one or more hydroxy groups are attached directly to the benzene ring, generally formed from C, H and O. [1] The entries are sorted by mass.