Chem review EP 5

Find the percent by mass of water in
NiCl2 * 6H2O.

In your own words, explain hydrogen bonds.
Draw a diagram of the hydrogen bonding between three water molecules.
Explain why the density of ice at 0°C is less than the density of liquid water at 0°C.

Draw a diagram of the hydrogen bonding between three water molecules.


Explain why the density of ice at 0°C is less than the density of liquid water at 0°C.

Identify the solute and solvent in a dilute aqueous solution of potassium chloride.

Which of the following compounds are soluble in water? Which are insoluble?
a. CaCl2
b. N2
c. HBr
d. NH4C2H3O2

Write the formulas for the following hydrates.
a. Calcium sulfate dihydrate
b. Cobalt(II) chloride hexahydrate