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Answered

When 1.0 g of fructose, C6H12O6(s), a sugar commonly found in fruits, is burned in oxygen in a bomb calorimeter, the temperature of the calorimeter increases by 1.58 °C. If the heat capacity of the calorimeter and its contents is 9.90 kJ/°C, what is q for this combustion?

Sagot :

JOANNAMARIEHERNANDEZIN

Answer:

Correct option is

A

−2808kJ/mol

Heat released by the combustion =C

p

×ΔT=10×1.56 kJ=15.6 kJ

Hence, ΔH=−15.6 kJ/g

Molar mass of fructose =180g

Hence, ΔH

combustion

=−15.6×180 kJ/mol=−2808 kJ/mol

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