Answer:
229 g HC₂H₃O₂
General Formulas and Concepts:
- Reading the Periodic Table of Elements
- Dimensional Analysis
Explanation:
Step 1: Define
3.81 mol HC₂H₃O₂ (C₂H₄O₂)
Step 2: Define conversions
Molar Mass of C - 12.01 g/mol
Molar Mass of H - 1.01 g/mol
Molar Mass of O - 16.00 g/mol
Molar Mass of C₂H₄O₂ - 2(12.01) + 4(1.01) + 2(16.00) = 60.06 g/mol
Step 3: Dimensional Analysis
[tex]3.81 \hspace{3} HC_2H_3O_2(\frac{60.06 \hspace{3} g \hspace{3} HC_2H_3O_2}{1 \hspace{3} mol \hspace{3} HC_2H_3O_2} )[/tex] = 228.829 g HC₂H₃O₂
Step 4: Simplify
We are given 3 sig figs.
228.829 g HC₂H₃O₂ ≈ 229 g HC₂H₃O₂
