What causes water to ionize?

Understanding pH and Ion Concentrations

Interactive Video
•
Chemistry, Biology, Science
•
11th - 12th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The presence of free protons in solution
The presence of hydronium ions in water
The electronegative nature of hydrogen atoms
The electronegative oxygen atom stripping electrons from hydrogen
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of hydronium ions in water?
They decrease the electrical conductivity of water
They prevent water from ionizing
They are the result of free protons existing in solution
They are formed when hydrogen ions are hydrated
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do H+ ions move under an electric field?
By forming covalent bonds with oxygen
By hopping from one water molecule to another
By migrating directly to the anode
By diffusing through the solution
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of proton hopping in biological systems?
It helps in the formation of free protons
It plays a role in biological proton transfer reactions
It prevents the ionization of water
It decreases the mobility of hydroxyl ions
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the ionic product of water (Kw) at 25 degrees Celsius?
10^-14
1.8 x 10^-16
55.5
10^-7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a neutral pH indicate about the concentrations of H+ and OH- ions?
H+ concentration is zero
H+ and OH- concentrations are equal
OH- concentration is greater than H+ concentration
H+ concentration is greater than OH- concentration
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is pH defined?
As the positive logarithm of hydrogen ion concentration
As the negative logarithm of hydrogen ion concentration
As the sum of H+ and OH- ion concentrations
As the ratio of H+ to OH- ions
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