Question

What volume of methane at NTP is formed from 8.2 g sodium acetate fused with soda lime

• A. 10 L
• B. 11.2 L
• C. 5.6 L
• D. 2.24 L

Hint:

Greatest tool: methane theoretical volume at NTP = 22.4 L/mol.

Answer 1

The Correct Option is D

Step 1: Decarboxylation reaction: \[ CH_3COONa + NaOH \rightarrow CH_4 + Na_2CO_3. \]
Step 2: Molar mass sodium acetate = 82 g/mol. \[ \text{mole}=\frac{8.2}{82}=0.1. \]
Step 3: 1 mole salt → 1 mole CH$_4$.
Step 4: Volume at NTP: \[ V=0.1\times22.4=2.24\text{ L}. \] Hence → (D).