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This is an MCQ-based quiz for GRE on the topic of PH.
The pH scale ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than 7 is basic.
What is the molarity of a HCl solution that has a pH of 5.0?
1.5 M
5.5*10^-1 M
0.5M
1*10^-5M
3.50M
What is the pH of a 2.0*10^-4 M solution of NaOH?
14
10.3
7
3
7.8
What is the pH of a 5.0*10^-4 M solution of Ca(OH)2?
1
7
14
4
11
Considering the Ka of HF (hydrofluoric acid) is 6.8*10^-4 , what is the pKb of the base F-?
10.8
8.4
7.5
6.4
5.5
What is the pH of a 0.05M solution of HCl?
1.3
5.5
11.0
4.1
0.05
What is the pH of an aqueous solution with a 5.1*10^-6 M hydroxide ion concentration?
4.5
8.7
7.9
10.1
Considering the Ka for acetic acid (CH3COOH) is 1.8*10^-5 , what is the Kb for acetate (CH3COO-)?
1.1*10^-8
3.5*10^-4
3.0*10^-3
5.6*10^-10
Determine the pH of a 0.10M HCl solution.
1
4
7
10
What is the pH of a 0.1M solution of NaOH?
1.0
13
8.1
5.0
0.1
NaOH(aq)+HCl(aq)→NaCl(aq)+H2O(l)
If 3.11*10^-4 moles of NaOH are reacted with 5.71*10^-4 moles of HCl, what is the pH if the total volume of the solution is 1 liter?
2.1
3.6
8.4
6.6
