An antacid tablet containing $$\(\mathrm{Mg}(\mathrm{OH})_{2}(\mathrm{~s})\)$$ (molar mass $$\(58.3 \mathrm{~g} / \mathrm{mol}\)$$ ) is titrated with a $$\(0.100 \mathrm{M}\)$$ solution of $$\(\mathrm{HNO}_{3}(\mathrm{aq})\)$$. The end point is determined by using an indicator. Based on the data in the table above, what was the mass of the $$\(\mathrm{Mg}(\mathrm{OH})_{2}(s)\)$$ in the antacid tablet?

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