Answer:
24.9 L Ar
General Formulas and Concepts:
Atomic Structure
- Reading a Periodic Table
- Moles
- STP (Standard Conditions for Temperature and Pressure) = 22.4 L per mole at 1 atm, 273 K
Aqueous Solutions
Stoichiometry
- Using Dimensional Analysis
Step-by-step explanation:
Step 1: Define
[Given] 40.0 g Ar
[Solve] L Ar
Step 2: Identify Conversions
[PT] Molar Mass of Ar - 39.95 g/mol
[STP] 22.4 L = 1 mol
Step 3: Convert
- [DA] Set up:
- [DA] Divide/Multiply [Cancel out units]:
Step 4: Check
Follow sig fig rules and round. We are given 3 sig figs.
24.9235 L Ar ≈ 24.9 L Ar