System to describe the chemical formulas for WEB.

Titration

Useful tools for titrimetry.
  • Content
  • Molar concentration
  • Standardization
  • Direct titration
  • Total hardness
  • Carbonate hardness
  • Hardness calculator

Content

List of services for automation of calculations when performing titration.

Direct titration

With direct titration, the titrant solution is added in small portions to the solution of test substance.

In this case, the calculations are carried out in a general manner. The technique for performing titration must be sought in other sources.

  • NaOH + HCl = NaCl + H2O
  • Na2B4O7*10H2O + HCl = H3BO3 + NaCl + H2O
  • Ca^2+ + Na2H2C10H12N2O8 = Na2CaC10H12N2O8 + H^+
Test substance: ?
Titrant: ?
  • Coefficients for reagents can be omitted.
  • The first reagent in the reaction equation must be the substance to be tested.
  • The second reagent must be a titrant.
  • Signs + and = must be separated by spaces from reagents.
  • Crystalline hydrate should be used only for the test substance, if it is not in solution.

Source data for titration

Reaction equation:
The test substance:
Titrant: , concentration: M.

Measured properties

Calculation of molar concentration

Standardization of a titrant solution is understood as the establishment of its exact concentration with relative error not exceeding ± 0,1%.

Select substance for standardization (titrant)

    Substance for standardization:

    Enter source data:

    Substance for standardization:

    Select primary standard

      Titrant:
      Стандарт:
      Error of equation solving:
      Reaction equation:

      Select standardization method:

        The titration method associated with the dissolution of metals in an acid

        Preparation of the primary standard

        The exact sample of the metallic ? is transferred to a ? ml volumetric flask and dissolved in ? ml of of ?. Do not cover the flask with a stopper! After dissolving the metal, the solution is cooled and brought to the mark with water.

        Continuation

        Preparation of a primary standard solution

        Performing measurements by pipetting method

        Calculation of molar concentration
        Видео, демонстрирующее выполнение анализа

        Conversion of water hardness units from one measurement system to another.

        The author expresses regret for the non-professional translation. If you find any errors and want to report, write to the email address : peterwin@yandex.ru
        Service version 0.4 of 2019-06-06.