A Buffer Is Prepared by Adding 1

question 87

Multiple Choice

A buffer is prepared by adding 1.00 L of 1.0 M HCl to 750 mL of 1.5 M NaHCOO. What is the pH of this buffer? K_a = 1.7 * 10¯⁴

• A) 2.87
• B) 3.72
• C) 3.82
• D) 3.95
• E) 4.66

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Definitions:

Chloroplast

The organelle found in plant cells and some algae that is responsible for photosynthesis.

Plant Cell

The basic structural and functional unit of plants, characterized by a cell wall, chloroplasts, and a large central vacuole.

Peptidoglycan

A complex polymer that forms a mesh-like layer outside the plasma membrane of most bacteria, providing structural support and shape.

Plasma Membrane

A thin, flexible barrier that surrounds a cell, regulating the movement of substances in and out of the cell.