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  2. Nylon rope trick - Wikipedia

    en.wikipedia.org/wiki/Nylon_Rope_Trick

    Nylon 610 is commonly used, in which hexamethylene diamine is dissolved in water to a concentration of about 0.40 moles / deciliter. A solution of sebacoyl chloride in cyclohexane (0.15 moles / deciliter concentration) is then layered on top of the water solution, the reaction typically being conducted in a beaker .

  3. Ethanol precipitation - Wikipedia

    en.wikipedia.org/wiki/Ethanol_precipitation

    The first hydration shell of a sodium ion dissolved in water. DNA is typically separated from other cell constituents in a two-phase solution of phenol and water. Due to its highly charged phosphate backbone DNA is polar and will concentrate in the water phase while lipids and proteins will concentrate in the phenol phase.

  4. Mamamoo - Wikipedia

    en.wikipedia.org/wiki/Mamamoo

    Mamamoo (Korean: 마마무; Japanese: ママム; commonly stylized in all caps) is a South Korean girl group formed and managed by RBW. The group is composed of four members: Solar , Moonbyul , Wheein , and Hwasa .

  5. Melting (album) - Wikipedia

    en.wikipedia.org/wiki/Melting_(album)

    Melting is the debut studio album by South Korean girl group Mamamoo.It was released by RBW on February 26, 2016 and distributed by CJ E&M Music.It contains twelve songs, including the single "You're the Best", which was used to promote the album.

  6. Freezing-point depression - Wikipedia

    en.wikipedia.org/wiki/Freezing-point_depression

    In the laboratory, lauric acid may be used to investigate the molar mass of an unknown substance via the freezing-point depression. The choice of lauric acid is convenient because the melting point of the pure compound is relatively high (43.8 °C). Its cryoscopic constant is 3.9 °C·kg/mol. By melting lauric acid with the unknown substance ...

  7. Abiogenesis - Wikipedia

    en.wikipedia.org/wiki/Abiogenesis

    The likely answer to this challenge is that the evolutionary process could have involved molecular self-replication, self-assembly such as of cell membranes, and autocatalysis via RNA ribozymes. [ 5 ] [ 6 ] [ 11 ] Nonetheless, the transition of non-life to life has never been observed experimentally, nor has there been a satisfactory chemical ...

  8. Elephant's toothpaste - Wikipedia

    en.wikipedia.org/wiki/Elephant's_toothpaste

    Elephant toothpaste reaction Two people watching the reaction of Elephant's toothpaste. Elephant's toothpaste is a foamy substance caused by the quick decomposition of hydrogen peroxide (H 2 O 2) using potassium iodide (KI) or yeast and warm water as a catalyst. [1]

  9. Boiling-point elevation - Wikipedia

    en.wikipedia.org/wiki/Boiling-point_elevation

    The change in chemical potential of a solvent when a solute is added explains why boiling point elevation takes place. The boiling point elevation is a colligative property, which means that boiling point elevation is dependent on the number of dissolved particles but not their identity.