Which Is the Best Acid to Prepare a Buffer with the Lowest

question 124

Multiple Choice

Which is the best acid to prepare a buffer with the lowest pH?

• A) C₅H₅O₅COOH, K_a = 4.0 × 10^-6
• B) HOC₆H₄OCOOH, K_a = 1.0 × 10^-3
• C) HBrO, K_a = 2.3 × 10^-9
• D) C₆H₄(COOH)₂, K_a = 2.9 × 10^-4
• E) CH₃COOH, K_a = 1.8 × 10^-5

---

Definitions:

General-purpose Tables

Tables designed for wide-ranging uses or functions, rather than being specialized for a particular type of data or analysis.

Column Heads

Column heads are the titles or headings used at the top of columns in tables or spreadsheets to denote the content or category of the information listed below them.

Gantt Chart

A type of bar chart that illustrates a project schedule, showing the start and finish dates of various elements of a project.

Line Chart

A type of graph that displays information as a series of data points connected by straight line segments, useful for showing trends over time.