Acetic Acid Is a Weak Acid That Dissociates into the Acetate

question 46

Multiple Choice

Acetic acid is a weak acid that dissociates into the acetate ion and a proton in aqueous solution: HC₂H₃O₂ (aq) C₂H₃O₂^- (aq) + H⁺ (aq)
At equilibrium at 25 °C a 0.100 M solution of acetic acid has the following concentrations:
[HC₂H₃O₂] = 0.0990 M, [C₂H₃O₂^-] = 1.33 × 10^-3 M and [H+] = 1.33 × 10^-3 M. The equilibrium constant, K_eq, for the ionization of acetic acid at 25 °C is ________.

• A)5.71 × 10⁴
• B)0.100
• C)1.75 × 10^-7
• D)1.79 × 10^-5
• E)5.71 × 10⁶

Distinguish between interfaces and classes, and understand the requirements for a class implementing an interface.

Recognize the role of the superclass Object in the Java class hierarchy and understand the purpose of the toString method.

Understand the concept of type checking and casting objects in Java.

Identify and differentiate between is-a and has-a relationships in object-oriented design.

---

Definitions:

Retain Organization's Personnel

Retaining an organization's personnel involves strategies and practices to keep employees engaged and committed to the company, reducing turnover rates.

Internal Staffing

The process of filling job positions within an organization by recruiting and selecting candidates from the existing workforce.

External Staffing

A recruitment process that involves hiring employees from outside the organization to fill open positions.

Increase Supply

This refers to a strategy or occurrence that leads to a higher quantity of a particular product or service in the market.