Your Ultimate Chemistry Learning Destination
Your Ultimate Chemistry Learning Destination
Correct answer : (4) Generally carbonyl compounds are reacting with HCN form Cyanohydrin. These reactions are nucleophilic addition reactions. For instance, Aldehydes react with HCN to form aldehyde Cyanohydrin. In the same way key don’ts also react with HCN to form ketone cyanohydrins. For example, Acetaldehyde […]
When the solutions of HCl with different concentrations and different volumes are mixed, The resultant concentration of solution can be calculated in the following way.. The solution of this problem is based on the rule of dilution. A solution of molarity M1 and volume V1 is diluted to V2 and of molarity M2, then, the […]
The hydrolysis reaction is a reversible reaction.The process of hydrolysis is a reverse reaction of neutralization. hydrolysis constant (𝐾ℎ):The equilibrium constant for the hydrolysis reaction multiplied by concentration of water is known as hydrolysis constant. it is represented by Kh. degree of hydrolysis (h): The fraction of the total salt which is hydrolysed it […]
Correct answer: 3 A mixture of NH₄OH (ammonium hydroxide) and NH₄Cl (ammonium chloride) forms a basic buffer solution. It contains a weak base and a salt of its strong conjugate acid. It is widely used in qualitative inorganic analysis. Buffer Solutions: The solution which resists the change in its pH when some […]
Correct answer:(3) * The final pH depends on the difference in milliequivalents of acid and base present in the mixed solution…
Degree of dissociation is defined as the ratio of number of molecules dissociated as ions to total number of molecules of electrolyte dissolved. Degree of association of strong electrolytes is unity(1). But,for weak electrolytes is less than Unity. The extent of dissociation for weak electrolytes increases upon the dilution.
Equilibrium constant depends on, 1. Temperature 2)Stoichiometric Coefficient 3) direction of reaction.. 1. Temperature : * For an exothermic reaction ( H < 0), equilibrium constant is inversly proportional to temperature. Increasing temperature decreases Kcd. Decreasing the temperature increases Kc. * For an endothermic reaction ( H > 0). Equilibrium constant is directly proportional to […]