1. According to the Arrhenius' acid and base theory, which one is the correct statement?
a. Acid produces H+ ions in water
b. Acid conjugates with a base
c. Base produces cations in water
d. Base conjugates with an acid
e. An acid reacts with a base and forms a salt
2. An acid solution has a [H+] of 1 x 10-5 M. The [OH-] of the solution is ....
a.1 x 10-3
b. 1 x 10-5
c. 1 x 10-7
d. 1 x 10-9
e. 1 x 10-14
3. If you look at the pH scale, a solution which has a pH of 3 would be ....
a. acidic
b. very acidic
c. very basic
d. basic
e. neutral
4. When you drink a lemonade, the taste is sour; because it has a [H+] of 2 x 10-4. The pH of the lemonade is ....
a. 2
b. 4
c. 4 - log 2
d. 10
e. 10 + log 2
5. Ammonia is a weak base. This solution has a [OH-] of 1 x 10-3. The pH of the ammonia solution is ....
a. 14
b. 13
c. 11
d. 9
e. 3
6. When you drink a cup of coffee, you do not realize that coffee is an acid solution rather than a neutral or a base solutions; because it has a pH of 5,0. The [H+] of coffee is ....
a. 1 x 10-3
b. 1 x 10-4
c. 1 x 10-5
d. 1 x 10-7
e. 1 x 10-9
7. An acid is an electrolyte solution. This can be classified as weak acid and strong acid. The following statements which indicates the properties of a weak acid is ....
a. does not dissolve in water
b. ionizes slightly in water to give molecules and a few ions
c. ionizes 100% in water to give all ions
d. dissolves in water only as molecules
e. dissolves partly in water
8. Potassium hydroxide, KOH is a strong base because it ....
a.produces K+ and OH- ions only in water
b. produces KOH, K+, and OH- ions in water
c. gives a low pH
d. does not dissolve in water
e. dissolves partly in water
9. A 50.0 mL sample of a 6.0 M NaOH solution is diluted with 250 mL of water. The final concentration of the diluted NaOH solution is ....
a. 6.0 M
b. 4,6 M
c. 3.0 M
d. 1.2 M
e. 1.0 M
10. HCl(aq) 2M 10 mL is mixed with HCl(aq) 1M 10 mL. The final concentration is ....
a. 1 M
b. 1,2 M
c. 1,5 M
d. 1,8 M
e. 2 M
11. NaOH(aq) 3 M 10 mL is mixed with NaOH(aq) 1 M 20 mL. The final concentration is ....
a. 0,6 M
b. 1 M
c. 1,7 M
d. 2 M
e. 2,3 M
12. H2SO4(aq) 0,1 M 25 mL is mixed with HCl(aq) 0,2 M 25 mL. The pH of the solution is ....
a. 1 - log 2
b. 1
c. 1 + log 2
d. 2 - log 2
e. 2
13. When an acid neutralizes a base, the correct answer is ....
a. a salt is produced
b. water is produced
c. the amount of H+ matches the amount of OH-
d. the pH of solution is less than 7
e. the pH of solution is more than 7
14. Hydrochloric acid, HCl(aq) 0,1M 50 mL is mixed with sodium hydroxide solution, NaOH(aq) 0,2M 50 mL. The pH of solution is ....
a. 2 - log 5
b. 2 - log 25
c. 7
d. 12 + log 2
e. 12 + log 5
15. A solution of sulfuric acid, H2SO4 is mixed with potassium hydroxide solution, KOH(aq). If these two solutions have the same volume and the same concentration, the pH of solution will be ....
a. 1 + log 2
b. less than 7
c. 7
d. more than 7
e. 13 + log 2
a. Acid produces H+ ions in water
b. Acid conjugates with a base
c. Base produces cations in water
d. Base conjugates with an acid
e. An acid reacts with a base and forms a salt
2. An acid solution has a [H+] of 1 x 10-5 M. The [OH-] of the solution is ....
a.1 x 10-3
b. 1 x 10-5
c. 1 x 10-7
d. 1 x 10-9
e. 1 x 10-14
3. If you look at the pH scale, a solution which has a pH of 3 would be ....
a. acidic
b. very acidic
c. very basic
d. basic
e. neutral
4. When you drink a lemonade, the taste is sour; because it has a [H+] of 2 x 10-4. The pH of the lemonade is ....
a. 2
b. 4
c. 4 - log 2
d. 10
e. 10 + log 2
5. Ammonia is a weak base. This solution has a [OH-] of 1 x 10-3. The pH of the ammonia solution is ....
a. 14
b. 13
c. 11
d. 9
e. 3
6. When you drink a cup of coffee, you do not realize that coffee is an acid solution rather than a neutral or a base solutions; because it has a pH of 5,0. The [H+] of coffee is ....
a. 1 x 10-3
b. 1 x 10-4
c. 1 x 10-5
d. 1 x 10-7
e. 1 x 10-9
7. An acid is an electrolyte solution. This can be classified as weak acid and strong acid. The following statements which indicates the properties of a weak acid is ....
a. does not dissolve in water
b. ionizes slightly in water to give molecules and a few ions
c. ionizes 100% in water to give all ions
d. dissolves in water only as molecules
e. dissolves partly in water
8. Potassium hydroxide, KOH is a strong base because it ....
a.produces K+ and OH- ions only in water
b. produces KOH, K+, and OH- ions in water
c. gives a low pH
d. does not dissolve in water
e. dissolves partly in water
9. A 50.0 mL sample of a 6.0 M NaOH solution is diluted with 250 mL of water. The final concentration of the diluted NaOH solution is ....
a. 6.0 M
b. 4,6 M
c. 3.0 M
d. 1.2 M
e. 1.0 M
10. HCl(aq) 2M 10 mL is mixed with HCl(aq) 1M 10 mL. The final concentration is ....
a. 1 M
b. 1,2 M
c. 1,5 M
d. 1,8 M
e. 2 M
11. NaOH(aq) 3 M 10 mL is mixed with NaOH(aq) 1 M 20 mL. The final concentration is ....
a. 0,6 M
b. 1 M
c. 1,7 M
d. 2 M
e. 2,3 M
12. H2SO4(aq) 0,1 M 25 mL is mixed with HCl(aq) 0,2 M 25 mL. The pH of the solution is ....
a. 1 - log 2
b. 1
c. 1 + log 2
d. 2 - log 2
e. 2
13. When an acid neutralizes a base, the correct answer is ....
a. a salt is produced
b. water is produced
c. the amount of H+ matches the amount of OH-
d. the pH of solution is less than 7
e. the pH of solution is more than 7
14. Hydrochloric acid, HCl(aq) 0,1M 50 mL is mixed with sodium hydroxide solution, NaOH(aq) 0,2M 50 mL. The pH of solution is ....
a. 2 - log 5
b. 2 - log 25
c. 7
d. 12 + log 2
e. 12 + log 5
15. A solution of sulfuric acid, H2SO4 is mixed with potassium hydroxide solution, KOH(aq). If these two solutions have the same volume and the same concentration, the pH of solution will be ....
a. 1 + log 2
b. less than 7
c. 7
d. more than 7
e. 13 + log 2
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