If the molecular mass for a chemical is 45.99 g/mol and the enthalpy of formation is 34 kJ/mol, the heat change will be
The heat change will be 34 kJ for every 45.99 grams if the reaction is for the formation or decomposition of the chemical.
To calculate the heat change, also known as the heat of reaction or ΔH, we need to use the equation:
ΔH = ΔHf(products) - ΔHf(reactants)
where:
ΔH = heat change
ΔHf(products) = enthalpy of formation of the products
ΔHf(reactants) = enthalpy of formation of the reactants
Given that the enthalpy of formation is 34 kJ/mol, we can use this value in the equation. However, we don't have the specific chemical formula or the enthalpy of formation for both the products and the reactants in your question. Therefore, we cannot determine the exact heat change value without this information. It is crucial to know the complete chemical equation to calculate the heat change accurately.