29.2 kJ of heat is required to convert an 50.0 g sample of
acetaldehyde from the liquid to gas phase. The molecular
weight of acetaldehyde is 44.05 g/mol. What is the heat of
vaporization of acetaldehyde in kJ/mol?
kJ/mol

Astudent states that 9.0 g of baking soda will form an unsaturated solution in 100 g of water. what do you need to know to decide whether this statement is correct? a. the temperature of the water and the molar mass of baking soda b. the percent by volume of the solution and the solubility of baking soda c. the temperature of the water and the solubility of baking soda at that temperature