
Equilibrium and Buffer Solutions Concepts

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

Mia Campbell
FREE Resource
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the equilibrium constant expression (Ka) for formic acid?
[H+][A-]/[HA]
[HA]/[H+][A-]
[H+]/[A-]
[A-]/[H+]
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is water not included in the equilibrium expression for formic acid?
Because it is a gas
Because it is a solid
Because it is a liquid
Because it is a catalyst
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using an ICE table in equilibrium calculations?
To find the molecular weight
To measure the temperature change
To calculate the speed of the reaction
To determine initial, change, and equilibrium concentrations
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What assumption is made to simplify the calculation of x in weak acid equilibrium problems?
x is always zero
x is equal to the initial concentration
x is negligible compared to the initial concentration
x is equal to the final concentration
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the pH of a solution calculated from the concentration of H+ ions?
By dividing the H+ concentration by 2
By adding the H+ concentration to 7
By multiplying the H+ concentration by 10
By taking the negative logarithm of the H+ concentration
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the Henderson-Hasselbalch equation used for?
Determining the boiling point of a solution
Finding the molecular formula of a compound
Measuring the density of a liquid
Calculating the pH of a buffer solution
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the context of buffer solutions, what does A- represent?
The catalyst
The acid
The solvent
The conjugate base
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