chemistry

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The peanut studied had a mass of 0.609 g before combustion and 0.053 g after combustion. The energy released during combustion caused a 14.2 degree Celsius increase in the temperature of 200.0 mL water in the calorimeter. Calculate the mass of peanut burned.

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    Have I missed something? Isn't the mass burned just 0.609-0.053 = ?g

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