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How do strong and weak bases dissociate or ionize?
Strong bases dissociate or ionize completely. Weak bases dissociate or ionize only partially. The degree to which they ionize/dissociate is given by the Kb for each weak base.
Some molecular compounds such as HCl ionize completely in solution. Some molecular compounds such as HC2H3O2 do not ionize completely when they dissolve in water.?
Yes, that's correct. Molecular compounds that ionize completely in water are called strong electrolytes, while those that do not ionize completely are called weak electrolytes. Strong electrolytes dissociate completely into ions when dissolved, whereas weak electrolytes only partially dissociate.
Why do weak bases not dissociate completely?
Weak bases do not dissociate completely because they do not ionize completely in solution. This is due to the equilibrium between the undissociated base and its ions, which results in only a fraction of the weak base molecules dissociating. This leads to a lower concentration of hydroxide ions in solution compared to strong bases.
Does a strong base dissociate more completely in water then a weak base does?
Yes, a strong base dissociates more completely in water compared to a weak base. Strong bases ionize completely into hydroxide ions and the conjugate acid in water, while weak bases only partially ionize. This difference in dissociation affects the pH and reactivity of the solution.
The strength of an acid and a base is determined by how completely they blank in water?
The strength of an acid and a base is determined by how completely they ionize or dissociate in water. Strong acids and bases ionize completely in water, producing a high concentration of H+ or OH- ions, while weak acids and bases ionize only partially, leading to lower concentrations of ions in solution.
Do strong acids and bases conduct more or less electricity than weak ones?
Strong acids and bases conduct more electricity than weak ones because they ionize completely in solution, creating more charged particles that can carry electric current. Weak acids and bases only partially ionize, resulting in fewer charged particles and lower conductivity.
Do Strong acids dissociate completely when dissolved in water?
No, only strong bases do:weak: B- + H2O HB + OH- (completely right ---> )
What is a true statement about weak electrolytes?
Weak electrolytes are substances that partially dissociate into ions in water, resulting in a low conductivity compared to strong electrolytes. They include weak acids, weak bases, and some salts. Weak electrolytes do not completely ionize in solution, leading to a reversible reaction dynamic.
Ammonia is a weak?
Ammonia is a weak base: NH3 + H2O <==> NH4+ + OH-
What is a weak base in solution?
A weak base is a substance that partially dissociates in water to release hydroxide ions. These bases do not completely ionize in solution and have low concentrations of hydroxide ions compared to strong bases. Examples include ammonia (NH3) and methylamine (CH3NH2).
What is is a pH of a weak base?
The pH of a weak base can be anything greater than 7.0. Generally, weak bases do have a lower pH that strong bases, but this is not always true. The fact that a base is weak only means that it does not completely ionize in solution. The pH of a weak base depends only upon the concentration of hydroxide ions (OH-) in solution.
What makes an acid or base weak or strong?
The strength of an acid or base is determined by its ability to donate or accept protons (H+ ions). Strong acids completely dissociate in water to release H+ ions, while strong bases completely ionize to release OH- ions. Weak acids and bases only partially dissociate/ionize in water. The extent of dissociation/ionization determines the strength.
