An acid-base indicator is a substance that changes color as the pH of the solution changes. Indicators work because they are weak acids which when in solution, exist in equilibrium with their ...

A well-established technique, acid-base titration is an analytical method used to determine the concentration of an unknown acid or base. In practice, it involves ...

An acid-base indicator is a substance that changes color as the pH of the solution changes. Indicators work because they are weak acids which when in solution, exist in equilibrium with their ...

IN work directed toward the separation of several volatile 2-halogenated carboxylic acids by paper chromatography, it was found desirable to develop these acids, not, as is usually the case, in the ...

QUANTITATIVE methods of paper chromatography tend to be unsatisfactory largely because of the very small amounts of substance separated. In the case of sugars, the spots are generally located by guide ...

Several theories have been developed to explain the behaviour of acids and bases. The most notable theories include the Arrhenius concept, the Brønsted-Lowry theory, and the Lewis concept. In the ...