Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the expression for Kc for the reaction 2A + B β 3C?
π‘ Hint: Use the coefficients from the balanced equation.
Question 2
Easy
If Kc for a reaction is 5.0, what does this imply about product concentrations compared to reactant concentrations?
π‘ Hint: Recall that K > 1 indicates a shift towards products.
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Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the purpose of an ICE table?
- To determine equilibrium constants
- To organize initial and change amounts for equilibrium
- To write chemical equations
π‘ Hint: Think about what the letters I, C, and E stand for.
Question 2
True or False: The approximation method can always be used when calculating equilibrium concentrations.
- True
- False
π‘ Hint: Consider when making approximations is reliable in science.
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Challenge Problems
Push your limits with challenges.
Question 1
For the equilibrium reaction 2A β B + C with Kc = 4.0, if A starts at 0.400 M, find the equilibrium concentrations of A, B, and C.
π‘ Hint: Rearranging and solving this quadratic will lead to values for x.
Question 2
A given equilibrium reaction has an equilibrium constant Kc of 0.045. If you start with 0.200 M of each reactant, what are the equilibrium concentrations?
π‘ Hint: Remember to consider the ranges of K values affecting directionality.
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