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Old 31 Mar 2006, 2:50 PM   #1 (permalink)
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what is a bronsted lowry acid or base?

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what is a bronsted lowry acid or base and how can you work it out if it is a multiple choice question.
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Old 31 Mar 2006, 4:05 PM   #2 (permalink)
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Re: what is a bronsted lowry acid or base?

According to the Bronsted-Lowry theory;

An acid is a proton doner ie/it gives up a proton

A base is a proton acceptor ie/it readily gains a proton

How to work it out depends on the question, what was the question?
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Old 31 Mar 2006, 4:06 PM   #3 (permalink)
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Re: what is a bronsted lowry acid or base?

A Bronsted-Lowry acid is any substance which is a proton donor. A Bronsted-Lowry Base is any substance which is a proton acceptor. For example

HCl(aq) + H2O(l) -> H3O+(aq) + Cl-

In this example, the acid is the HCl molecule, because it donates the proton (i.e. the H atom) to the water molecule, which is thus the Bronsted-Lowry base as it accepts the proton.
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