Question

H2SO4 goes to HSO4 Did it gain or lose a proton? Is it a Bronsted-Lowery acid or base?

Answer 1

We conclude that it is a Bronsted-Lowry acid.

Step-by-step explanation:

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According to Bronsted-Lowry an acid is a chemical species that is capable of yielding protons and a Bronsted-Lowry base is a chemical species capable of accepting protons.

In this case we see that sulfuric acid (H2SO4) loses a proton to become HSO4.

We conclude that it is a Bronsted-Lowry acid.

Answer 2

H2SO4 is a chemical symbol for sulfuric acid.  Converting this compound to HSO4 or the hydrogen sulfate ion means that it has lost one of its protons. With this we can conclude that H2SO4 is a Bronsted-Lowry acid.