Answer to Question #156197 in General Chemistry for Ariel Noel

Question

1. Try to dissolve a crystal of NaCl and a small flake of naphthalene/menthol crystal in 1 cm3 of each of the following solvents commonly found in the home; kerosene, ethanol (rubbing alcohol/methylated spirits), acetone (nail polish remover) and water. State whether the solids are insoluble, sparingly soluble, soluble or very soluble in each of the solvents. 
2. Determine whether the solvents mix with one another. Use no more than 1 cm3 liquid. Just state whether miscible or immiscible. 
3. Use your observation from 1 and 2 above, along with course content from CHM 1102, to identify the dominant intermolecular forces for each mixture.

Answer 1

1. NaCl.

Kerosene - insoluble.

Ethanol - sparingly soluble.

acetone - insoluble.

water - soluble.

Naphthalene.

Kerosene - very soluble.

Ethanol - soluble.

acetone - spraingly soluble.

water - insoluble.

2. Water and ethanol mix.

acetone and kerosene mix.

3. Intermolecular forces are water and ethanol mix.