Which is the stronger bronsted lowry base or

Already have an account? Log In. What scientific concept do you need to know in order to solve this problem? Our tutors have indicated that to solve this problem you will need to apply the Bronsted Lowry Acid and Base concept. You can view video lessons to learn Bronsted Lowry Acid and Base.

If you forgot your password, you can reset it. Join thousands of students and gain free access to 46 hours of Chemistry videos that follow the topics your textbook covers. Analytical Chemistry Video Lessons. Cell Biology Video Lessons. For example, ammonia, NH 3 , is a moderately weak base.

Cl - has little tendency to gain a proton so it is a weak base, but its conjugate acid, HCl, has an enormous tendency to donate a proton it is a strong acid. Take the test now! See the tutorial on Acid and Base Definitions. The term "weak" is not well defined, that is, a weak acid is one that only partially dissociates ionises. For this reason there is a continuum of weakness of acid, that is, some weak acids are weaker than others.

We have chosen to use the terms "weak" for those that undergo very little dissociation, and the term "moderately weak" for those that are not so "weak". You will also see comparative terms such as weak, very weak, and, very, very weak even feeble used to describe this continuum of weakness. The Arrhenius theory where acids and bases are defined by whether the molecule contains hydrogen and hydroxide ion is too limiting.

This is best illustrated in the following equation:. In the case of the HOH it is a base in the first case and an acid in the second case.

To determine whether a substance is an acid or a base, count the hydrogens on each substance before and after the reaction. If the number of hydrogens has decreased that substance is the acid donates hydrogen ions.

If the number of hydrogens has increased that substance is the base accepts hydrogen ions. These definitions are normally applied to the reactants on the left. If the reaction is viewed in reverse a new acid and base can be identified.

The substances on the right side of the equation are called conjugate acid and conjugate base compared to those on the left. Also note that the original acid turns in the conjugate base after the reaction is over. For a reaction to be in equilibrium a transfer of electrons needs to occur. The acid will give an electron away and the base will receive the electron.

Acids and Bases that work together in this fashion are called a conjugate pair made up of conjugate acids and conjugate bases. A- is a conjugate base because it is in need of a H in order to remain in equilibrium and return to HA. If the H2O was in a different problem and was instead donating an H rather than accepting an H it would be an acid!