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