AP Chem 3.7 &3.8

Front

What is the solubility of a molecule with a large nonpolar segment and an OH group?

Back

A small amount of it can dissolve in water because of the OH group at the end of the molecule.

Front

Which molecule is the MOST soluble in water: CH4, CO2, or NH3?

Back

NH3 is the MOST soluble in water.

Front

How do you calculate molarity?

Back

Molarity (M) = moles of solute / liters of solution.

Front

What is the molarity of a solution made by dissolving 2.20 g of NaCl in 750.0 ml of water?

Back

0.50 M.

Front

What term describes two liquids that do not mix due to different polarities?

Back

Immiscible.

Front

What is the reason many ionic compounds dissolve in water?

Back

Water is highly polar.

Front

Define miscible liquids.

Back

Miscible liquids are liquids that can mix in any proportion without separating.

Front

What is the effect of polarity on solubility?

Back

Polar substances tend to dissolve in polar solvents, while nonpolar substances dissolve in nonpolar solvents.

Front

What is an example of a polar solvent?

Back

Water is an example of a polar solvent.

Front

What is the relationship between solubility and temperature for most solids?

Back

For most solids, solubility increases with an increase in temperature.