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chemistry homework helpIf the heat of formation of 1 mol of CH3OH is -201.3KJ how much heat is exchanged when 43 g are formed?

User AmrAngry
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1 Answer

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Answer:

-270.16kJ

Explanations:

The formula for calculating the mole of a compound is expressed as:


mole=\frac{mass}{molar\text{ mass}}

Determine the mole of 43g of CH3OH


\begin{gathered} mole\text{ of CH}_3OH=\frac{43g}{32.04g\text{/mol}} \\ mole\text{ of CH}_3OH=1.342moles \end{gathered}

If the heat of formation of 1 mol of CH3OH is -201.3KJ, the amount of heat formed by 1.342moles of the same compound is given as:


\begin{gathered} heat\text{ formed}=1.342moles*-201.3kJ \\ heat\text{ formed}=-270.16kJ \end{gathered}

Therefore -270.16kJ heat is exchanged when 43g are formed'

User Colin Alworth
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