Problem: The reaction for the combustion of propane is shown below. C3H8(g) + 5 O2 (g) → 3 CO2 (g)  + 4 H2O (l)    ΔH = - 526.3 kcal/molHow much heat is  released when 71.7 g of propane is burned? 

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FREE Expert Solution

First, we have to take note that we were given the standard enthalpy of combustion for  C3H8(g)  and this is for 1 mole of C3H8(g). 

We are given the mass so we need to convert that first to moles in order to calculate. 

85% (226 ratings)
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Problem Details

The reaction for the combustion of propane is shown below. 

C3H8(g) + 5 O2 (g) → 3 CO2 (g)  + 4 H2O (l)    ΔH = - 526.3 kcal/mol

How much heat is  released when 71.7 g of propane is burned? 

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