Consider the thermal decomposition of the basic copper carbonate ore, Malachite, during the calcinat — Metallurgy and Isolation of Elements Chemistry Question
Question
Consider the thermal decomposition of the basic copper carbonate ore, Malachite, during the calcination process. Determine the total number of moles of gaseous products evolved upon the complete calcination of exactly $1$ mole of Malachite.
Answer: 2
💡 Solution & Explanation
The formula for Malachite is $CuCO_3 \cdot Cu(OH)_2$. The calcination reaction is: $CuCO_3 \cdot Cu(OH)_2 \xrightarrow{\Delta} 2CuO_{(s)} + H_2O_{(g)} + CO_{2(g)}$. The decomposition yields 1 mole of water vapour and 1 mole of carbon dioxide per mole of ore, resulting in a total of 2 moles of gaseous products.
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