A "Neon" Sign Contains 2

question 34

Multiple Choice

A "neon" sign contains 2.4 × 10² mL of argon. Assuming that the gas is at standard temperature and pressure, there is 1.00 moles of gas per 22.4 L of volume. How many argon atoms are present in this sign?

• A) 6.5 × 10²¹
• B) 2.8 × 10²²
• C) 3.2 × 10²⁴
• D) 9.9 × 10 ^{− 23}