1. If a small amount of strong base were added to a buffer madeof a weak acid HA and the lithium salt of its conjugate base, LiA,the pH does not change very much because....
a. No reaction occurs
b. The strong base reacts with A- to give HA
c. Adding a strong base changes the pKa of the base
d. The strong base reacts with HA to give A-
e. The strong base reacts with the Li+ to giveLiOH
2) Which one of the following 0.10 M aqueous solutions has thehighest pH?
a. Sodium perchlorate
b. Magnesium dichromate
c. Barium nitrate
d. Sodium sulfate
e. Iron (III) chloride
3) What is the equilibrium equation for the reaction 1.0 Molarsolution of lithium dichromate with water?
a. Li2Cr2O7(aq) + H2O(l) <----> 2 Li(aq)+ + C2O72- (aq)
b. Li(aq)+ + H2O(aq) <-- --> LiH(aq)+ + -OH(aq)
c. H3O+ + -OH <-- --> 2H2O
d. Cr2O72-(aq)+ 2H2O(l) <-- -->H2Cr2O7(aq) + 2-OH(aq)
e. Cr2O72- (aq) +H2O(l) <---->HCr2O7- (aq) +-OH(aq)
