Calculate the molality of a solution formed by adding 3.159 g of methanol (CH3OH) to 100.00 mL of water. The density of water is 0.9982 g/mL. DO not include units.

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter13: The Chemistry Of Solutes And Solutions
Section: Chapter Questions
Problem 106QRT: Calculate the molality of a solution made by dissolving 115.0 g ethylene glycol, HOCH2CH2OH, in 500....
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Calculate the molality of a solution formed by adding 3.159 g of methanol (CH3OH) to 100.00 mL of water. The density of water is 0.9982 g/mL. DO not include units. The lattice energy for KF is 821 kJ/mol. The enthalpy of hydration for K+ is -336 kJ/mol and the enthalpy of hydration for F- is -431 kJ/mol. What is the enthalpy in kJ when 14.91 g of KF forms an aqueous solution? (Hint: start by finding the enthalpy of solution)
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