Acid – Base Properties of Salt Solutions

Determine whether each of the following forms an acid, basic, or neutral solution. Give the appropriate equations to support your answer, along with explanations. See class notes.
Salt	Acidic, Basic, or Neutral Solution	Reasoning	
Na2S			
Na3PO4			
NaH2PO4			
NaF			
NaCl			
NaC2H3O2			
AlCl3			
NH4NO3			
Ca(NO3)2			
NaC3H5O2			
C6H5NH3Cl			
N2H5Cl			
BeCl2			
MgCl2			
Sodium cyanide, NaCN, is the salt of a weak acid HCN. Calculate the concentration of H3O+, OH-, HCN, and Na+ in a solution prepared by dissolving 10.8 g of NaCN in 500.0 mL of pure water at 25oC.

a. Determine the concentration of CN- and Na+.
b. Write the balanced equation showing how CN- (aq) ion hydrolyzes water. 
c. Complete the ice chart. 
d. Determine the Kb for the reaction between CN- and water.
e. Using the ICE chart and Kb determine the concentration of H3O+, OH-, and HCN.