How Many SO₃^2- Ions Are Contained in 99

question 124

Multiple Choice

How many SO₃^2- ions are contained in 99.6 mg of Na₂SO₃? The molar mass of Na₂SO₃ is 126.05 g mol^-1.

• A) 1.52 × 10 27 SO 3 2- ions
• B) 4.76 × 10 20 SO 3 2- ions
• C) 2.10 × 10 21 SO 3 2- ions
• D) 1.05 × 10 21 SO 3 2- ions
• E) 9.52 × 10 20 SO 3 2- ions

---

Definitions:

Sincere Apology

An expression of regret that is genuine and heartfelt, indicating true remorse for actions or words that caused harm.

Bad News

Information that is unwelcome, disappointing, or negative, often requiring careful communication.

Message Shortness

The characteristic of conveying information in a brief and concise manner.

Audience Shock

A reaction from the audience that occurs when they are presented with unexpected, surprising, or shocking information or content.