enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Acid–base titration - Wikipedia

    en.wikipedia.org/wiki/Acidbase_titration

    Acidbase titration is also utilized in the analysis of acid rain effects on soil and water bodies, contributing to the overall understanding and management of environmental quality. [24] The method's prevision and reliability make it a valuable tool in safeguarding ecosystems and assessing the impact of human activities on natural water ...

  3. Titration - Wikipedia

    en.wikipedia.org/wiki/Titration

    Acidbase titrations depend on the neutralization between an acid and a base when mixed in solution. In addition to the sample, an appropriate pH indicator is added to the titration chamber, representing the pH range of the equivalence point. The acidbase indicator indicates the endpoint of the titration by changing color.

  4. Acid–base reaction - Wikipedia

    en.wikipedia.org/wiki/Acidbase_reaction

    In chemistry, an acidbase reaction is a chemical reaction that occurs between an acid and a base.It can be used to determine pH via titration.Several theoretical frameworks provide alternative conceptions of the reaction mechanisms and their application in solving related problems; these are called the acidbase theories, for example, Brønsted–Lowry acidbase theory.

  5. Analytical chemistry - Wikipedia

    en.wikipedia.org/wiki/Analytical_chemistry

    Most familiar to those who have taken chemistry during secondary education is the acid-base titration involving a color-changing indicator, such as phenolphthalein. There are many other types of titrations, for example, potentiometric titrations or precipitation titrations.

  6. Determination of equilibrium constants - Wikipedia

    en.wikipedia.org/wiki/Determination_of...

    This is suitable for all acidbase equilibria. log 10 β values between about 2 and 11 can be measured directly by potentiometric titration using a glass electrode . This enormous range of stability constant values (ca. 100 to 10 11 ) is possible because of the logarithmic response of the electrode.

  7. Kjeldahl method - Wikipedia

    en.wikipedia.org/wiki/Kjeldahl_method

    If boric acid (or some other weak acid) was used, direct acidbase titration is done with a strong acid of known concentration. HCl or H 2 SO 4 can be used. Indirect back titration is used instead if strong acids were used to make the standard acid solution: strong base of known concentration (like NaOH) is used to neutralize the solution. In ...

  8. Thermometric titration - Wikipedia

    en.wikipedia.org/wiki/Thermometric_titration

    Non-aqueous acidbase titrations can be carried out advantageously by thermometric means. Acid leach solutions from some copper mines can contain large quantities of Fe(III) as well as Cu(II). The "free acid" (sulfuric acid) content of these leach solutions is a critical process parameter. While thermometric titrimetry can determine the free ...

  9. Equivalent concentration - Wikipedia

    en.wikipedia.org/wiki/Equivalent_concentration

    Normality can be used for acid-base titrations. For example, sulfuric acid (H 2 SO 4) is a diprotic acid. Since only 0.5 mol of H 2 SO 4 are needed to neutralize 1 mol of OH −, the equivalence factor is: f eq (H 2 SO 4) = 0.5. If the concentration of a sulfuric acid solution is c(H 2 SO 4) = 1 mol/L, then its normality is 2 N. It can also be ...