In a reaction of iron and oxygen to produce iron (III) oxide, 2.1 g of iron were completely consumed. What are the percent yield and percent error if 2.5 g of iron (III) oxide is actually produced?

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.

the answer is c i took the test

5.6⋅10−^19  j

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