Thursday, November 21, 2019
Qualitative analysis of Anions and Cations Essay
Qualitative analysis of Anions and Cations - Essay Example These chemistry aspects become important in conducting the deductive process utilised in analysing the ions. Other than the chemistry involved in the analysis, logic and common sense also play a fundamental role in understanding the qualitative analysis. Qualitative analysis of ions contained within various substances only detect the ion and not the element contained in the substance. In conducting these experiments, there will be various objectives that will be achieved and these will be the main aims of conducting the experiment. The aims of this experiment will include the following. The process of identifying the cations present within a substance involves a series of activities being undertaken in order to deductively determine the actual identity of ions within a substance. This is because there could be more than one cation within a substance and an elimination process must be applied to correctly determine the identity of ions. The ion are grouped in five categories that are defined using specific precipitating reagent. The five groups must be done in a predetermined order. The first experiment will be aimed at determining insoluble chlorides that might be present within the presented substance. This will involve the addition of HCl into an aqueous solution to produce the characteristics of the insoluble chlorides that will be used to determine the present cation. The second experiment will involve testing for insoluble sulphides by the addition sulphuric acid as the reagent. The insoluble sulphides will be the final products that will be precipitated from the reaction. The fourth experiment will involve the soluble substance from the third experiment through the addition of a solution of ammonia. This will be testing for insoluble sulphides that could be formed from this reaction. The separation of ions from the substances that contain them involves the addition of reagents to the substances in seeking enhance the reaction that will
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