Determine precipitation sequence (qualitative). A solution contains 0.15 M sodium hydroxide and 0.15 M sodium cyanide. Solid nickel(II) nitrate is added slowly to this mixture. What ionic compound precipitates first from the solution? Solubility product constant data is found in the Chemistry References. Formula of first precipitate = Hint: It is not necessary to do a calculation here.
Ionic Equilibrium
Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.
Arrhenius Acid
Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.
Bronsted Lowry Base In Inorganic Chemistry
Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.
Since concentration given in the question for both NaOH and NaCN are same. Hence we have to compare Ksp value to predict which compound will precipitate first.
- The ionic compound which have less Ksp value will precipitate first.
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