Many moderately large organic molecules containing basicnitrogen atoms are not very soluble in water as neutral molecules,but they are frequently much more soluble as theiracid salts. Assuming that pH in the stomach is 2.5, indicatewhether each of the following compounds would be presentin the stomach as the neutral base or in the protonatedform: nicotine, Kb = 7 x 10-7; caffeine, Kb = 4 x10-14;strychnine, Kb = 1 x 10-6; quinine, Kb = 1.1 x 10-6.
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.
Many moderately large organic molecules containing basic
nitrogen atoms are not very soluble in water as neutral molecules,
but they are frequently much more soluble as their
acid salts. Assuming that pH in the stomach is 2.5, indicate
whether each of the following compounds would be present
in the stomach as the neutral base or in the protonated
form: nicotine, Kb = 7 x 10-7; caffeine, Kb = 4 x10-14;
strychnine, Kb = 1 x 10-6; quinine, Kb = 1.1 x 10-6.
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