Magnesium burns in air to produce a bright light and is often used in fireworks displays. The combustion of magnesium can be described by the following thermochemical equation: 2Mg(s) +O2(g) 2MgO(s)                   ∆Ho = -1203 kJ Calculate the heat of reaction (in kilojoules) when the combustion of 6.82 g of magnesium occurs.

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Chapter6: Thermochemisty
Section: Chapter Questions
Problem 6.91QP: The Group 2A carbonates decompose when heated. For example, MgCO3(s)MgO(s)+CO2(g) Use enthalpies of...
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Magnesium burns in air to produce a bright light and is often used in fireworks displays. The combustion of magnesium can be described by the following thermochemical equation:

2Mg(s) +O2(g) 2MgO(s)                   ∆Ho = -1203 kJ


Calculate the heat of reaction (in kilojoules) when the combustion of 6.82 g of magnesium occurs.

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