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  2. Equivalent concentration - Wikipedia

    en.wikipedia.org/wiki/Equivalent_concentration

    Normality is defined as the number of gram or mole equivalents of solute present in one liter of solution.The SI unit of normality is equivalents per liter (Eq/L). = where N is normality, m sol is the mass of solute in grams, EW sol is the equivalent weight of solute, and V soln is the volume of the entire solution in liters.

  3. 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:

  4. Equivalent (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Equivalent_(chemistry)

    An equivalent (symbol: officially equiv; [1] unofficially but often Eq [2]) is the amount of a substance that reacts with (or is equivalent to) an arbitrary amount (typically one mole) of another substance in a given chemical reaction. It is an archaic quantity that was used in chemistry and the biological sciences (see Equivalent weight § In ...

  5. Normality test - Wikipedia

    en.wikipedia.org/wiki/Normality_test

    A graphical tool for assessing normality is the normal probability plot, a quantile-quantile plot (QQ plot) of the standardized data against the standard normal distribution. Here the correlation between the sample data and normal quantiles (a measure of the goodness of fit) measures how well the data are modeled by a normal distribution. For ...

  6. Equivalent weight - Wikipedia

    en.wikipedia.org/wiki/Equivalent_weight

    Equivalent weight has the units of mass, unlike atomic weight, which is now used as a synonym for relative atomic mass and is dimensionless. Equivalent weights were originally determined by experiment, but (insofar as they are still used) are now derived from molar masses. The equivalent weight of a compound can also be calculated by dividing ...

  7. Is the US government really borrowing from Social Security to ...

    www.aol.com/finance/us-government-really...

    You may have heard that Social Security is facing financial trouble because Congress and presidents raided the trust funds and wondered how such a thing could be allowed to happen.

  8. The best air purifiers of 2025 - AOL

    www.aol.com/lifestyle/best-air-purifiers...

    We put the best air purifiers from Lenovo, Honeywell, Winix, and more to the test to see which held up best (and actually purified the air for you). See what our product scientist has to say.

  9. 8 Nonalcoholic Wines That Taste Just As Good As the Real Thing

    www.aol.com/8-nonalcoholic-wines-taste-just...

    An impressive sparkling Riesling that could fool many people into thinking it was regular sparkling wine, this German multi-vintage blend has fresh, zippy flavors and a minerally end; serve it on ...