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  2. Acid value - Wikipedia

    en.wikipedia.org/wiki/Acid_value

    V eq is the volume of titrant (ml) consumed by the crude oil sample and 1 ml of spiking solution at the equivalent point, b eq is the volume of titrant (ml) consumed by 1 ml of spiking solution at the equivalent point, 56.1 g/mol is the molecular weight of KOH, W oil is the mass of the sample in grams. The normality (N) of titrant is calculated as:

  3. Cubic equation - Wikipedia

    en.wikipedia.org/wiki/Cubic_equation

    He understood the importance of the discriminant of the cubic equation to find algebraic solutions to certain types of cubic equations. [18] In his book Flos, Leonardo de Pisa, also known as Fibonacci (1170–1250), was able to closely approximate the positive solution to the cubic equation x 3 + 2x 2 + 10x = 20.

  4. Solubility table - Wikipedia

    en.wikipedia.org/wiki/Solubility_table

    Substance Formula 0 °C 10 °C 20 °C 30 °C 40 °C 50 °C 60 °C 70 °C 80 °C 90 °C 100 °C Barium acetate: Ba(C 2 H 3 O 2) 2: 58.8: 62: 72: 75: 78.5: 77: 75

  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. Wikipedia:Reference desk/Archives/Science/March 2006 - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Reference_desk/...

    Gratitude --pom 00:11, 2 March 2006 (UTC) Depends on ethics. Some peer reviewers get into it just to steal ideas. Others are really trying to help. --Kainaw 01:55, 2 March 2006 (UTC) You would be better stealing ideas from reviewing grants not papers. Most people (99%) review papers because others have done it for their own papers.

  7. Ozone - Wikipedia

    en.wikipedia.org/wiki/Ozone

    Ozone is a colourless or pale blue gas, slightly soluble in water and much more soluble in inert non-polar solvents such as carbon tetrachloride or fluorocarbons, in which it forms a blue solution. At 161 K (−112 °C; −170 °F), it condenses to form a dark blue liquid. It is dangerous to allow this liquid to warm to its boiling point ...

  8. Occam's razor - Wikipedia

    en.wikipedia.org/wiki/Occam's_razor

    In philosophy, Occam's razor (also spelled Ockham's razor or Ocham's razor; Latin: novacula Occami) is the problem-solving principle that recommends searching for explanations constructed with the smallest possible set of elements.

  9. Merton's portfolio problem - Wikipedia

    en.wikipedia.org/wiki/Merton's_portfolio_problem

    It is one of the few cases of stochastic singular control where the solution is known. For a graphical representation, the amount invested in each of the two assets can be plotted on the x - and y -axes; three diagonal lines through the origin can be drawn: the upper boundary, the Merton line and the lower boundary.