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Chapter 11: Q11.1-9E (page 646)
Explain why the ions \(N{a^ + }\) and \(C{l^ - }\) are strongly solvated in water but not in hexane, a solvent composed of nonpolar molecules.
Solvated means stabilizing both\(N{a^ + }\)and\(C{l^ - }\)
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Exposing a 100.0 mL sample of water at 0 °C to an atmosphere containing a gaseous solute at 20.26 kPa (152 torr) resulted in the dissolution of\({\bf{1}}.{\bf{45}}{\rm{ }} \times {\rm{ }}{\bf{1}}{{\bf{0}}^{ - {\bf{3}}}}\))g of the solute. Use Henry’s law to determine the solubility of this gaseous solute when its pressure is 101.3 kPa (760 torr).
Suggest an explanation for the observations that ethanol, \({\bf{C}}_2{\bf{H}}_5{\bf{OH}}\),is completely miscible with water and that ethanethiol, \({\bf{C}}_2{\bf{H}}_5{\bf{SH}}\), is soluble only to the extent of 1.5 g per 100 mL of water
A solution of potassium nitrate, an electrolyte, and a solution of Glycerine\(\left( {{{\bf{C}}_{\bf{3}}}{{\bf{H}}_{\bf{5}}}{{\left( {{\bf{OH}}} \right)}_{\bf{3}}}} \right)\), a nonelectrolyte, both boil at 100.3 °C. What other physical properties of the two solutions are identical?
What is the difference between a 1 M solution and a 1 m solution?
What is the freezing point of a solution of dibromobenzene,\({{\bf{C}}_{\bf{6}}}{{\bf{H}}_{\bf{4}}}{\bf{B}}{{\bf{r}}_{\bf{2}}}\), in 0.250 kg of benzene, if the solution boils at 83.5 °C?
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