Metallurgy and Isolation of ElementshardNUMERICAL

Consider the thermal decomposition of the basic copper carbonate ore, Malachite, during the calcinatMetallurgy 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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