1. GENERAL CHEMISTRY-II (1412)
S.I. # 23
1. Percent dissociation of a weak acid decreases as its concentration __________.
a. increases
b. decreases
c. stays constant
2. Calculate the % dissociation of 0.5 M HCN (aq) if Ka = 2.56x10-10
3. Calculate Ka for 0.5 M HCN (aq) if % Dissociation = 3.2 x 10-3
4. Calculate % Dissociation for a 0.1 ammonia solution, if pH = 11.1
5. Calculate pOH & pH for 0.10 M of weak base aqueous ammonia solution
given Kb = 1.8x10-5.
2. 6. Determine the concentration of a HNO3 (aq) solution with a pH of 2.
7. Why does NaOH(aq) react with HCl(aq)?
8. Does NaOH(aq) react with HCl(aq)? Show and explain why or why not.
Yes & the reaction is:
9. Will NaOH (aq) react with HCl( aq)? If so, by what percent and why?
