
Final Exam Review_1
Flashcard
•
Chemistry
•
University
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the Ksp expression for the dissolution of Ca3(PO4)2 (s) in water?
Back
Ksp = [Ca²⁺]³ [PO₄³⁻]²
2.
FLASHCARD QUESTION
Front
What does a positive ΔH° and a positive ΔS° indicate about a reaction's spontaneity?
Back
The reaction is spontaneous only at high temperatures.
3.
FLASHCARD QUESTION
Front
How do you calculate the pH of a buffer solution containing acetic acid and sodium acetate?
Back
Use the Henderson-Hasselbalch equation: pH = pKa + log([A-]/[HA]).
4.
FLASHCARD QUESTION
Front
What are biopolymers?
Back
Biopolymers are large molecules made up of repeating units, such as carbohydrates, proteins, and nucleic acids.
5.
FLASHCARD QUESTION
Front
What is the definition of a rate limiting step in a reaction?
Back
The rate limiting step is the slowest step in the reaction sequence that determines the overall reaction rate.
6.
FLASHCARD QUESTION
Front
What is the formula for calculating Ksp from solubility?
Back
Ksp = [products]^coefficients, where coefficients are the stoichiometric coefficients from the balanced equation.
7.
FLASHCARD QUESTION
Front
What is the significance of the equilibrium constant (K) in chemical reactions?
Back
K indicates the ratio of concentrations of products to reactants at equilibrium.
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