Questions from General Chemistry

Q: How are the Arrhenius and Brønsted–Lowry definitions of acids and

How are the Arrhenius and Brønsted–Lowry definitions of acids and bases similar, and how do these definitions differ? Could a substance be an Arrhenius acid but not a Brønsted– Lowry acid? Could a sub...

Q: Describe the relationship between a conjugate acid–base pair in the

Describe the relationship between a conjugate acid–base pair in the Brønsted–Lowry model. Write balanced chemical equations showing the following molecules/ions behaving as Brønsted– Lowry acids in wa...

Q: Acetic acid is a weak acid in water. What does this

Acetic acid is a weak acid in water. What does this indicate about the affinity of the acetate ion for protons compared to the affinity of water molecules for protons? If a solution of sodium acetate...

Q: How is the strength of an acid related to the position of

How is the strength of an acid related to the position of its ionization equilibrium? Write the equations for the dissociation (ionization) of HCl, HNO3, and HClO4 in water. Since all these acids are...

Q: Explain how water is an amphoteric substance. Write the chemical equation

Explain how water is an amphoteric substance. Write the chemical equation for the autoionization of water. Write the expression for the equilibrium constant, Kw, for this reaction. What values does Kw...

Q: How is the pH scale defined? What range of pH values

How is the pH scale defined? What range of pH values corresponds to acidic solutions? What range corresponds to basic solutions? Why is pH = 7.00 considered neutral? When the pH of a solution changes...

Q: Explain the collision model for chemical reactions. What “collides”?

Explain the collision model for chemical reactions. What “collides”? Do all collisions result in the breaking of bonds and formation of products? Why? How does the collision model explain why higher c...

Q: Sketch a graph for the progress of a reaction illustrating the activation

Sketch a graph for the progress of a reaction illustrating the activation energy for the reaction. Define “activation energy.” Explain how an increase in temperature for a reaction affects the number...

Q: Describe how we write the equilibrium expression for a reaction. Give

Describe how we write the equilibrium expression for a reaction. Give three examples of balanced chemical equations and the corresponding expressions for their equilibrium constants.

Q: What is a mixture? What is a solution? How do

What is a mixture? What is a solution? How do mixtures differ from pure substances? What are some of the techniques by which mixtures can be resolved into their components?