In each reaction, name the Bronsted acid, the Bronsted base and their conjugates…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
In each reaction, name the Bronsted acid, the Bronsted base and their conjugates. Then say which species could act both ways.
Need a reminder? The key ideaShow
Arrhenius: acids give and bases give in water. Bronsted-Lowry: acids donate protons and bases accept them; a conjugate pair differs by one proton. Lewis: acids accept an electron pair, bases donate one. Strong electrolytes ionise fully, weak ones partly. If a fraction of mol/L of acid ionises, .
The worked solution
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Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
(a) gives a proton, so it is the acid; its conjugate base is . Water takes the proton, so it is the base; its conjugate acid is .
(b) Water gives a proton, so it is the acid; its conjugate base is . takes it, so it is the base; its conjugate acid is .
Both ways: and each act as an acid in one reaction and a base in the other. They are amphiprotic.
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