enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Dilution ratio - Wikipedia

    en.wikipedia.org/wiki/Dilution_ratio

    The following formulas can be used to calculate the volumes of solute (V solute) and solvent (V solvent) to be used: [1] = = where V total is the desired total volume, and F is the desired dilution factor number (the number in the position of F if expressed as "1/F dilution factor" or "xF dilution"). However, some solutions and mixtures take up ...

  3. Homeopathic dilutions - Wikipedia

    en.wikipedia.org/wiki/Homeopathic_dilutions

    Three main logarithmic dilution scales are in regular use in homeopathy. Hahnemann created the "centesimal" or "C scale", diluting a substance by a factor of 100 at each stage. There is also a decimal dilution scale (notated as "X" or "D") in which the preparation is diluted by a factor of 10 at each stage. [9]

  4. Dilution (equation) - Wikipedia

    en.wikipedia.org/wiki/Dilution_(equation)

    The dilution in welding terms is defined as the weight of the base metal melted divided by the total weight of the weld metal. For example, if we have a dilution of 0.40, the fraction of the weld metal that came from the consumable electrode is 0.60.

  5. Serial dilution - Wikipedia

    en.wikipedia.org/wiki/Serial_dilution

    A serial dilution is the step-wise dilution of a substance in solution, either by using a constant dilution factor, or by using a variable factor between dilutions. If the dilution factor at each step is constant, this results in a geometric progression of the concentration in a logarithmic fashion.

  6. Virus quantification - Wikipedia

    en.wikipedia.org/wiki/Virus_quantification

    Plaque formation can take 3–14 days, depending on the virus being analyzed. Plaques are generally counted manually, and the plaque count, in combination with the dilution factor of the infection solution (the sample initially applied to the cells), is used to calculate the number of plaque forming units per sample unit volume (PFU/mL). The ...

  7. Molar concentration - Wikipedia

    en.wikipedia.org/wiki/Molar_concentration

    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, the molar concentration of water is

  8. Mass fraction (chemistry) - Wikipedia

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

    A solution with 1 g of solute dissolved in a final volume of 100 mL of solution would be labeled as "1%" or "1% m/v" (mass/volume). This is incorrect because the unit "%" can only be used for dimensionless quantities. Instead, the concentration should simply be given in units of g/mL.

  9. Miles and Misra method - Wikipedia

    en.wikipedia.org/wiki/Miles_and_Misra_method

    The following equation is used to calculate the number of colony forming units (CFU) per ml from the original aliquot / sample: CFU per ml = Average number of colonies for a dilution x 50 x dilution factor. Advantages. Faster than other methods. Produce less bacterial contamination of the working surface.