
Water Dissociation and pH Concepts

Interactive Video
•
Chemistry
•
10th - 12th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What ions are present in all aqueous solutions due to the partial dissociation of water?
Ca2+ and SO4 2- ions
K+ and NO3- ions
Na+ and Cl- ions
H+ and OH- ions
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For a solution to be acidic, what must be true about the ion concentrations?
Hydrogen ion concentration is zero
Hydrogen ion concentration is equal to hydroxide ion concentration
Hydrogen ion concentration is greater than hydroxide ion concentration
Hydrogen ion concentration is less than hydroxide ion concentration
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the equilibrium constant expression for the dissociation of water involve?
Concentration of reactants over products
Concentration of products over reactants
Sum of reactants and products
Difference between reactants and products
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of the ionic product of water (KW) at 298 Kelvin?
1 * 10^-7 mol^2 dm^-6
1 * 10^-14 mol^2 dm^-6
1 * 10^-10 mol^2 dm^-6
1 * 10^-4 mol^2 dm^-6
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the pH of pure water at 298 Kelvin calculated using KW?
By taking the negative logarithm of the square root of KW
By dividing KW by 2
By multiplying KW by 2
By taking the square root of KW
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the pH of pure water at 298 Kelvin?
6
7
8
5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the dissociation of water when the temperature increases?
It stops completely
It decreases
It increases
It remains the same
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