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  2. Orders of magnitude (molar concentration) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(molar...

    List of orders of magnitude for molar concentration; Factor (Molarity) SI prefix Value Item 10 −24: yM 1.66 yM: 1 elementary entity per litre [1]: 8.5 yM: airborne bacteria in the upper troposphere (5100/m 3) [2]

  3. Molar concentration - Wikipedia

    en.wikipedia.org/wiki/Molar_concentration

    m(NaCl) = 2 mol/L × 0.1 L × 58 g/mol = 11.6 g. To create the solution, 11.6 g NaCl is placed in a volumetric flask, dissolved in some water, then followed by the addition of more water until the total volume reaches 100 mL. The density of water is approximately 1000 g/L and its molar mass is 18.02 g/mol (or 1/18.02 = 0.055 mol/g). Therefore ...

  4. Concentration - Wikipedia

    en.wikipedia.org/wiki/Concentration

    However, more commonly the unit mol/L (= mol/dm 3) is used. Number concentration The number ... mol/mol ppm, ppb, ppt mass fraction / kg/kg ppm, ppb, ppt ...

  5. Useful conversions and formulas for air dispersion modeling

    en.wikipedia.org/wiki/Useful_conversions_and...

    1 Nm 3 of any gas (measured at 0 °C and 1 atmosphere of absolute pressure) equals 37.326 scf of that gas (measured at 60 °F and 1 atmosphere of absolute pressure). 1 kmol of any ideal gas equals 22.414 Nm 3 of that gas at 0 °C and 1 atmosphere of absolute pressure ... and 1 lbmol of any ideal gas equals 379.482 scf of that gas at 60 °F and ...

  6. Parts-per notation - Wikipedia

    en.wikipedia.org/wiki/Parts-per_notation

    For example, the conversion factor between a mass fraction of 1 ppb and a mole fraction of 1 ppb is about 4.7 for the greenhouse gas CFC-11 in air (Molar mass of CFC-11 / Mean molar mass of air = 137.368 / 28.97 = 4.74). For volume fraction, the suffix "V" or "v" is sometimes appended to the parts-per notation (e.g. ppmV, ppbv, pptv).

  7. Montana legislators reject bathroom ban for transgender ...

    www.aol.com/news/montana-legislators-reject...

    December 3, 2024 at 9:00 PM (Reuters) - Montana legislators on Tuesday rejected an attempt to ban a transgender member of the state House of Representatives from using the women's restroom at the ...

  8. Mortgage and refinance rates for Jan. 14, 2025: 30-year fixed ...

    www.aol.com/mortgage-and-refinance-rates-for-jan...

    Average mortgage rates increase higher as of Tuesday, January 14, 2025, pushing the 30-year fixed benchmark to its highest levels since May following last week's stronger-than-expected jobs report.

  9. No apps, no hacks. A guide to optimizing productivity - AOL

    www.aol.com/no-apps-no-hacks-guide-164416943.html

    No app can fix your focus. Here’s how CNN’s Upasna Gautam ditched the productivity hacks and embraced the basics to get the most out of life.