[wlindo40]

1. A 0.192 mole sample of solid NaX is dissolved in 275 mL of water in an insulated container at 23.7°C After the solid dissolves, the temperature of the water is 19.2°C. What is the heat of solution of NaX?


2. Mercury has the following physical properties: normal melting point = -39°C, normal boiling point = 357°C, heat of fusion = 2.33 kJ/mol, heat of vaporization = 284 J/g, specific heat = 0.139 J/g·°C. Calculate ΔH for the conversion of 155 g of solid mercury at its freezing point to mercury vapor at its boiling point

[Borek]

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