Basic experimental techniques needed in the qualitative analysis of cations in water are reviewed. The techniques include precipitation, separation of the precipitate by centrifugation or filtration, ...Basic experimental techniques needed in the qualitative analysis of cations in water are reviewed. The techniques include precipitation, separation of the precipitate by centrifugation or filtration, decantation, aspiration, heating in a water bath, pH measurement, and flame test.
A pH buffer is an aqueous solution consisting of a weak acid and its conjugate base or vice versa, which minimizes pH change when a small amount of a strong acid or a strong base is added to it.
The qualitative analysis of cations in a mixture is used as a model to teach chemistry experimental skills. This model provides hands-on practice of separating a mixture of substances that are often e...The qualitative analysis of cations in a mixture is used as a model to teach chemistry experimental skills. This model provides hands-on practice of separating a mixture of substances that are often encountered in chemical synthesis and chemical extraction processes. The ions in the mixture are separated by selective precipitation, selective dissolution, and characteristic reactions enforced based on common ion effects, pH effect, coordination complex formation, and redox reactions.
Frank Reidy Dedicated to Mr. Frank Reidy, a philanthropist who brought the author to the US and supported research on the medical application of pulsed electric fields for medical treatments at Frank ...Frank Reidy Dedicated to Mr. Frank Reidy, a philanthropist who brought the author to the US and supported research on the medical application of pulsed electric fields for medical treatments at Frank Reidy Research Center For Bioelectrics, Old Dominion University, Norfolk, VA. The research resulted in developing techniques proven to cure some forms of cancer.
