Answer:
Explanation:
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In this case, when acetic acid is titrated with sodium hydroxide, the following chemical reaction is carried out:
Whereas there is a 1:1 mole ratio between the acid and the base, which means that at the equivalence point we evidence:
Which in terms of volumes and concentrations is written as:
Thus, solving for the required volume of base, we obtain:
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are all the question multiple choice?
I'd go for D here. It also fits in with the idea of thermal expansion - as something is heated up, molecules vibrate and maybe collide. they vibrate with bigger amplitudes, so taking up more space, so expanding. maybe
The answer would be 2+ since the atomic number represents how many protons are in the element. In this case, there are 16 protons, but only 14 electrons, which means there are an additional 2 protons, hence the 2+ charge on the ion.
