D
danekafrederick
Guest
The self-ionization of water occurs when ____________. water is mixed with salt water molecules are broken apart by adding electricity to the water
evaporation occurs water molecules react with each other and transfer H+ ions between them to form OH- and H3O+ molecules
2. Complete the following equation by solving for the question mark: H20 (l) + ? (l) H3O+(aq) + OH- (aq) CH3 H2O
NaCl N2
3. In the equilibrium reaction of the self-ionization of water, where does the equilibrium lie? slightly to the right (H3O+ and OH- side) far to the left (H20 side)
far to the right (H3O+ and OH- side) in the middle
4. When the self-ionization of water occurs, which molecule is called an acid? H2O H3O+
OH- N2
5. What color would litmus paper turn in the presence of milk of magnesia? white red
blue black
6. How does litmus paper react when exposed to vinegar? It absorbs the extra hydroxide ions and turns blue. It absorbs the extra hydronium ions and turns red.
It absorbs the extra protons attached to the hydronium ions and turns red. It doesn't react, because vinegar is too weak an acid.
7. Which of the following, when added to water, creates a solution with the highest concentration of hydronium? battery acid vinegar
milk milk of magnesia
8. What are the concentrations of H3O+ and OH- in pure water? both 1.0 x 10-7 H3O+ 1.0 x 10-7 and OH- 1.0 x 10-9
H3O+ 1.0 x 10-4 and OH- 1.0 x 10-10 H3O+ 1.0 x 10-10 and OH- 1.0 x 10-4
9. What is the concentration of hydroxide ion in an aqueous solution in which [H3O+] = 1.0 x 10-3 ? 1.0 x 10-8 1.0 x 10-9
1.0 x 10-10 1.0 x 10-11
10. If the concentration of H3O+ is greater than 10-7 M, the solution is _________. basic neutral
acidic none of the above
11. A basic solution _____________. has a concentration of H3O+ that is greater than 10-7 M is equal to 1 × 10-14 at 25 degrees C
has a concentration of OH- that is greater than 10-7 M none of the above
evaporation occurs water molecules react with each other and transfer H+ ions between them to form OH- and H3O+ molecules
2. Complete the following equation by solving for the question mark: H20 (l) + ? (l) H3O+(aq) + OH- (aq) CH3 H2O
NaCl N2
3. In the equilibrium reaction of the self-ionization of water, where does the equilibrium lie? slightly to the right (H3O+ and OH- side) far to the left (H20 side)
far to the right (H3O+ and OH- side) in the middle
4. When the self-ionization of water occurs, which molecule is called an acid? H2O H3O+
OH- N2
5. What color would litmus paper turn in the presence of milk of magnesia? white red
blue black
6. How does litmus paper react when exposed to vinegar? It absorbs the extra hydroxide ions and turns blue. It absorbs the extra hydronium ions and turns red.
It absorbs the extra protons attached to the hydronium ions and turns red. It doesn't react, because vinegar is too weak an acid.
7. Which of the following, when added to water, creates a solution with the highest concentration of hydronium? battery acid vinegar
milk milk of magnesia
8. What are the concentrations of H3O+ and OH- in pure water? both 1.0 x 10-7 H3O+ 1.0 x 10-7 and OH- 1.0 x 10-9
H3O+ 1.0 x 10-4 and OH- 1.0 x 10-10 H3O+ 1.0 x 10-10 and OH- 1.0 x 10-4
9. What is the concentration of hydroxide ion in an aqueous solution in which [H3O+] = 1.0 x 10-3 ? 1.0 x 10-8 1.0 x 10-9
1.0 x 10-10 1.0 x 10-11
10. If the concentration of H3O+ is greater than 10-7 M, the solution is _________. basic neutral
acidic none of the above
11. A basic solution _____________. has a concentration of H3O+ that is greater than 10-7 M is equal to 1 × 10-14 at 25 degrees C
has a concentration of OH- that is greater than 10-7 M none of the above