Question 1
Silver ions can be precipitated from aqueous solutions by the addition of aqueous chloride:
Ag
+(
aq) + Cl
-(
aq) → AgCl(
s)
Silver chloride is virtually insoluble in water so that the reaction appears to go to completion. How many grams of solid NaCl must be added to 25.0 mL of 0.376 mol L
-1 AgNO
3 solution to completely precipitate the silver?
◦ 6.22 × 10
3 g
◦ 1.61 × 10
-4 g
◦ 9.40 × 10
-3 g
◦ 0.161 g
◦ 0.549 g
Question 2
How many H
+ ions can the acid H
2SO
4 donate per molecule?
◦ 0
◦ 1
◦ 2
◦ 3