When 1 mole of sodium benzoate () is completely decarboxylated by heating with an excess of soda-lim — Hydrocarbons Chemistry Question
Question
When 1 mole of sodium benzoate ($C_6H_5COONa$) is completely decarboxylated by heating with an excess of soda-lime, what is the exact molar mass (in g/mol) of the primary inorganic salt produced as a byproduct?
Answer: 106
💡 Solution & Explanation
The decarboxylation of sodium benzoate with soda-lime ($NaOH + CaO$) yields benzene and sodium carbonate ($Na_2CO_3$). The molar mass of $Na_2CO_3$ is calculated as: $(2 \times 23) + 12 + (3 \times 16) = 46 + 12 + 48 = 106 \text{ g/mol}$.
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