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  2. Ammonium iron(II) sulfate - Wikipedia

    en.wikipedia.org/wiki/Ammonium_iron(II)_sulfate

    Ammonium iron(II) sulfate, or Mohr's salt, is the inorganic compound with the formula (NH 4) 2 SO 4 ·Fe(SO 4)·6H 2 O. Containing two different cations, Fe 2+ and NH + 4, it is classified as a double salt of ferrous sulfate and ammonium sulfate. It is a common laboratory reagent because it is readily crystallized, and crystals resist oxidation ...

  3. Potassium permanganate - Wikipedia

    en.wikipedia.org/wiki/Potassium_permanganate

    Potassium permanganate is an inorganic compound with the chemical formula KMnO 4. It is a purplish-black crystalline salt, which dissolves in water as K + and MnO − 4 ions to give an intensely pink to purple solution.

  4. Titration - Wikipedia

    en.wikipedia.org/wiki/Titration

    A titration curve is a curve in graph the x-coordinate of which represents the volume of titrant added since the beginning of the titration, and the y-coordinate of which represents the concentration of the analyte at the corresponding stage of the titration (in an acid–base titration, the y-coordinate usually represents the pH of the solution).

  5. Sodium oxalate - Wikipedia

    en.wikipedia.org/wiki/Sodium_oxalate

    It is the sodium salt of oxalic acid. It contains sodium cations Na + and oxalate anions C 2 O 2− 4. It is a white, crystalline, odorless solid, that decomposes above 290 °C. [2] Sodium oxalate can act as a reducing agent, and it may be used as a primary standard for standardizing potassium permanganate (KMnO 4) solutions.

  6. Double salt - Wikipedia

    en.wikipedia.org/wiki/Double_salt

    Mohr's salt, ammonium iron(II) sulfate, [NH 4] 2 [Fe(H 2 O) 6](SO 4) 2.. A double salt is a salt that contains two or more different cations or anions.Examples of double salts include alums (with the general formula M I M III (SO 4) 2 ·12H 2 O) and Tutton's salts (with the general formula (M I) 2 M II (SO 4) 2 ·6H 2 O). [1]

  7. Robert De Niro Says Mornings Nowadays Are Spent Watching Ms ...

    www.aol.com/robert-niro-says-mornings-nowadays...

    Robert De Niro loves being a dad!. The Oscar winner, 81, opened up about mornings spent with his 20-month-old daughter Gia in an interview with The Sunday Times published on Saturday, Jan. 4. "I ...

  8. Cerimetry - Wikipedia

    en.wikipedia.org/wiki/Cerimetry

    Cerimetry or cerimetric titration, also known as cerate oximetry, is a method of volumetric chemical analysis developed by Ion Atanasiu. It is a redox titration in which an iron(II)–1,10-phenanthroline complex color change indicates the end point. Ferroin can be reversibly discolored in its oxidized form upon titration with a Ce 4+ solution ...

  9. Mortgage and refinance rates for Jan. 8, 2025: Rates for 30 ...

    www.aol.com/finance/mortgage-and-refinance-rates...

    Average mortgage rates for popular 30-year fixed terms are relatively flat while shorter 15-year fixed terms tick up as of Wednesday, January 8, 2025, elevated to their highest levels in six months.