Would you be so kind as to help me on these Chemistry problem sets? 
Im having particular issues with the ones below.

Thank you kindly.
01

The hydronium ion (H+) concentration of 0.15 M acetic acid is 6.3 * 10^-4 mol/L.

What is the pH of the solution?

a.	0.82
b.	10.6
c.	1.4
d.	8.2
e.	3.2
f.	4.2
g.	3.0
h.	5.7

02

Select the solution with the highest pH

a.	10^-3 M H2SO4
b.	10^-5 M Ca(OH)2
c.	10^-5 M NaOH
d.	10^-3 M Ca(OH)2
e.	10^-3 M NaOH
f.	10^-5 M HCl
g.	10^-3 M HCl


03

A change in pH of 1.0 unit indicates that

a.	the molarity of H+ changes by one order of magnitude
b.	the acid or base content decreases or increases by 1.0 M
c.	the volume of H+ in a solution changes by an order of magnitude
d.	the salt content decreases or increases by 1.0 M
e.	the acid or base content decreases or increases by 0.1 M

04 

The pH of a solution is determined to be 4.33
What is the hydronium ion concentration of this solution? 
Answer in units of * 10^-5 M

05

What is the pH of a 0.015 M solution of H2SO4? Consider that both H
atoms are completely ionized.

a.	1.70
b.	3.05
c.	1.82
d.	3.65
e.	1.52
06

Select the solution that is most acidic

a.	10^-5 M CH3OOH
b.	10^-5 M NaCL
c.	10^-3 M HCl
d.	H2O
e.	10^-5 M HCl