The solubility curve is a plot of solubility against temperature.
<h3>What is solubility?</h3>
The term solubility refers to the amount of substance that dissolves in solution at a given temperature. Hence, the solubility curve is a plot of solubility against temperature.
Thus, from the solubility curve (not shown) the amount if HCl dissolved can be obtained hence the question is incomplete.
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Answer:

Explanation:
Hello,
In this case, for the given chemical reaction:

The standard entropy change is computed by subtracting the products standard enthalpy and the reactants standard enthalpy considering each species stoichiometric coefficients:

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Answer:
boron has one valence electron
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