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  2. Phenolphthalein - Wikipedia

    en.wikipedia.org/wiki/Phenolphthalein

    Phenolphthalein (/ f ɛ ˈ n ɒ l (f) θ ə l iː n / [citation needed] feh-NOL(F)-thə-leen) is a chemical compound with the formula C 20 H 14 O 4 and is often written as "HIn", "HPh", "phph" or simply "Ph" in shorthand notation. Phenolphthalein is often used as an indicator in acid–base titrations.

  3. 1,10-Phenanthroline - Wikipedia

    en.wikipedia.org/wiki/1,10-Phenanthroline

    1,10-Phenanthroline (phen) is a heterocyclic organic compound.It is a white solid that is soluble in organic solvents. The 1,10 refer to the location of the nitrogen atoms that replace CH's in the hydrocarbon called phenanthrene.

  4. Phthalide - Wikipedia

    en.wikipedia.org/wiki/Phthalide

    Molar mass: 134.134 g·mol −1 Melting point: 75 to 77 °C (167 to 171 °F; 348 to 350 K) [1] ... Phenolphthalein. Tetrachlorophthalide. Butylphthalide. References

  5. C20H14O4 - Wikipedia

    en.wikipedia.org/wiki/C20H14O4

    The molecular formula C 20 H 14 O 4 (molar mass: 318.32 g/mol) may refer to: diphenyl isophthalate (CA number 744-45-6) diphenyl terephthalate (CAS number 1539-04-4) phenolphthalein (CAS number 77-09-8) resorcinol dibenzoate (CAS number 94-01-9) xestoquinone

  6. Barium hydroxide - Wikipedia

    en.wikipedia.org/wiki/Barium_hydroxide

    Molar mass: 171.34 g/mol (anhydrous) 189.355 g/mol (monohydrate) ... This allows the use of indicators such as phenolphthalein or thymolphthalein ...

  7. Molar mass - Wikipedia

    en.wikipedia.org/wiki/Molar_mass

    The molar mass of atoms of an element is given by the relative atomic mass of the element multiplied by the molar mass constant, M u ≈ 1.000 000 × 10 −3 kg/mol ≈ 1 g/mol. For normal samples from Earth with typical isotope composition, the atomic weight can be approximated by the standard atomic weight [ 2 ] or the conventional atomic weight.

  8. Mass fraction (chemistry) - Wikipedia

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

    where is the molar concentration, and is the molar mass of the component . Mass percentage Mass percentage is defined as the mass fraction multiplied by 100. Mole ...

  9. Methyl orange - Wikipedia

    en.wikipedia.org/wiki/Methyl_orange

    Molar mass: 327.33 g·mol −1 Appearance Orange or yellow solid [1] Density: 1.28 g/cm 3: ... Phenolphthalein; Bromothymol blue; Congo red; Universal indicator ...