Chapter 14, Problem 30E

A 10.00%-by-man solution of ethanol, ${\text{CH}}_{\text{2}}{\text{CH}}_{\text{2}}\text{OH}$ , in water has a density $\text{0}\text{.9831}$ g/mL at $\text{15}°\text{C}$ and 0.9804 9g/mL at $25°\text{C}$ . Calculate the molality of the ethanol—water solution these two temperatures Does the molality differ a the two temperatures (that is, at IS and $25°\text{C}$ ) Would you expect the molality differ at the tempertures Explain.