A Student Weighed 9000

question 113

Multiple Choice

A student weighed 9000.μg of sulfur in the lab.This is the same mass as

• A)9.000 × 10^-6 g.
• B)9.000 × 10^-3 kg.
• C)9.000 × 10² cg.
• D)9.000 × 10⁹ pg.

---

Definitions:

[HCO3-]

The bicarbonate ion, an intermediate form in the deprotonation of carbonic acid. It plays a significant role in the pH buffering system of blood.

HA

HA typically refers to a generic acid formula where "H" represents hydrogen and "A" stands for an anion; it can also denote hyaluronic acid in biomedical contexts.

pH

A scale used to specify the acidity or basicity of an aqueous solution, with values ranging from 0 to 14.

K

The symbol for Potassium, a chemical element with the atomic number 19, essential for many bodily functions.