The solubility in acetone and ethanol is tested for an unknown solid compound, Unknown A. A small amount of Unknown A did not dissolve in acetone. A small amount of Unknown A did not dissolve in ethanol. Based on these observations, is Unknown A a molecular or ionic compound?

3. Use the information in the solubility table below to respond to each of the following questions. a. Which salt is most soluble in water at 0 °C? b. Which salt is least soluble in water at 0 °C? c. Which salt is least soluble in water at 100 °C?

Question 5 Examine the solubility curve and state whether the following is an unsaturated or saturated solution? Provide evidence to support your claim. Temperature Effects on Solubility 240 Potassium nitrate. 200 (KNO,) a. 90 g Naclo, at 40°C 160 Sodium chlorate 120 (NaCIO,) b. 125 g KBr at 70•C c. 81 g KNO, at 60-C 80 Potassium bromide (KBr) 40 Sodium chloride (NaCi) O 10 20 30 40 50 60 70 80 90 Temperature ("C) Solubility (grams per 100 g of water)

Simulation of Vapour Pressure 1. Record the temperature and then the vapour pressure for each substance. Temperature = °C 2. Indicate the type(s) of intermolecular force acting between the molecules for each substance. methanol CH3OH ethanol CH3CH2OH propan-1-ol CHзCH:CH2ОH Vapour pressure: Vapour pressure: Vapour pressure: O Dispersion Dispersion O Dispersion Dipole/dipole Dipole/dipole Dipole/dipole Hydrogen bonding Hydrogen bonding Hydrogen bonding Substance with highest normal boiling point: Briefly discuss the trend in vapour pressure for these substances in terms of intermolecular forces: CI OH 2-chloropropanc H,C-C- CH3 | propan-2-ol H,c-с-сн, H;C-C- CH3 propanone H. H Vapour pressure: Vapour pressure: Vapour pressure: Dispersion Dipole/dipole Dispersion Dispersion Dipole/dipole Dipole/dipole Hydrogen bonding Hydrogen bonding Hydrogen bonding Substance with highest normal boiling point: Briefly discuss the trend in vapour pressure for these substances in terms of intermolecular…