Chemistry, 08.05.2021 23:10 jiminpark12
A 2.00 g marshmallow is combusted under a flask containing 50.0 g of water at an initial temperature of 25.0oC. After the combustion of the marshmallow, 0.30 g of charred marshmallow remained and the temperature of the water increased to 75.0oC.
Determine the energy gained by the water.
Specific heat of water is 4.184 J/goC or 1 cal/goC
a
+356 joules
b
-356 joules
c
-10.5 kJ
d
+10.5 kJ
Answers: 3
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