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  2. 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).

  3. Acid strength - Wikipedia

    en.wikipedia.org/wiki/Acid_strength

    The solution is then titrated with a strong base HA + OH − → A − + H 2 O. until only the deprotonated species, A −, remains in solution. At each point in the titration pH is measured using a glass electrode and a pH meter. The equilibrium constant is found by fitting calculated pH values to the observed values, using the method of least ...

  4. Fracking - Wikipedia

    en.wikipedia.org/wiki/Fracking

    Hydraulic fracturing [a] is a well stimulation technique involving the fracturing of formations in bedrock by a pressurized liquid. The process involves the high-pressure injection of "fracking fluid" (primarily water, containing sand or other proppants suspended with the aid of thickening agents) into a wellbore to create cracks in the deep rock formations through which natural gas, petroleum ...

  5. Lead–acid battery - Wikipedia

    en.wikipedia.org/wiki/Lead–acid_battery

    Fully charged: Lead dioxide positive plate, lead negative plate, and concentrated aqueous sulfuric acid solution. In the fully charged state, the negative plate consists of lead and the positive plate is lead dioxide. The electrolyte solution has a higher concentration of aqueous sulfuric acid, which stores most of the chemical energy.

  6. General relativity - Wikipedia

    en.wikipedia.org/wiki/General_relativity

    Kurt Gödel showed [149] that solutions to Einstein's equations exist that contain closed timelike curves (CTCs), which allow for loops in time. The solutions require extreme physical conditions unlikely ever to occur in practice, and it remains an open question whether further laws of physics will eliminate them completely.

  7. Behavioral economics - Wikipedia

    en.wikipedia.org/wiki/Behavioral_economics

    Behavioral economics is the study of the psychological (e.g. cognitive, behavioral, affective, social) factors involved in the decisions of individuals or institutions, and how these decisions deviate from those implied by traditional economic theory.