A sample of Na2SO4(s) is dissolved in 225 g of water at 298 K such that the

Question:

A sample of Na2SO4(s) is dissolved in 225 g of water at 298 K such that the solution is 0.325 molar in Na₂SO₄ . A temperature rise of 0.146°C is observed. The calorimeter constant is 330. J K^–1. Calculate the enthalpy of solution of Na₂SO₄ in water at this concentration. Compare your result with that calculated using the data in Table 4.1 (Appendix B, Data Tables).

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