What is the approximate volume of 280 g of chlorine gas (Cl2) at STP
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Ответ:
78 L Cl₂
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightChemistry
Atomic Structure
Reading a Periodic TableSTP (Standard Conditions for Temperature and Pressure) = 22.4 L per mole at 1 atm, 273 KStoichiometry
Using Dimensional AnalysisExplanation:Step 1: Define
280 g Cl₂
Step 2: Identify Conversions
[PT] Molar Mass of Cl - 35.45 g/mol
Molar Mass of Cl₂ - 2(35.45) = 70.90 g/mol
[STP] 1 mol = 22.4 L
Step 3: Convert
[DA] Set up:Step 4: Check
Follow sig fig rules and round. We are given 2 sig figs.
78.4981 L Cl₂ ≈ 78 L Cl₂
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Explanation: