Answer:

Explanation:
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In this case, according to the chemical reaction by which HBr reacts with Ba(OH)2:

We can see there is a 2:1 mole ratio between the acid and the base; thus, at the equivalent point we can write:

Therefore, for is to compute the volume of the used base, we proceed as shown below:

And we plug in to obtain:

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Answer:
The pH of 0.001 M HNO3 is pH 2.0
<span>The compound may have properties that are very different from those of the elements it is composed from.</span>