Task : electrolyte

11. Which of the following substances is a electrolyte or a nonelectrolyte?
a. SO3
B. K2CO3
C. CH3OH
D. O2
E. CuBr2
F. HI

22. Calculate the H for
a. black coffee with a pH of 5.0
b. a solution with a pH of 8.5
c. a solution with a pH of 1.2 

33. For each of the given pairs determine which solution is more acidic explain your answer
a, 1M HCl or 1M H2SO4
B. 1M HCl or 1M HC2H3O2