Problem: Consider the following reaction: 2 Mg(s) + O2(g) → 2 MgO(s), ΔH = –1204 kJCalculate the amount of heat transferred when 3.56 g of Mg(s) reacts at constant pressure.

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We are asked to calculate the amount of heat transferred when 3.56 g of Mg(s) reacts at constant pressure.


Molar Mass Mg = 24.31 g/mol

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Problem Details

Consider the following reaction: 2 Mg(s) + O2(g) → 2 MgO(s), ΔH = –1204 kJ

Calculate the amount of heat transferred when 3.56 g of Mg(s) reacts at constant pressure.