copper metal can be produced by heating copper(1) oxide and hydrogen gas. another product of the reaction is…

copper metal can be produced by heating copper(1) oxide and hydrogen gas. another product of the reaction is water. if the molar enthalpy of reaction (δrh) is +130.5 kj/mol, calculate the enthalpy of reaction for producing 2.0 g of copper metal.

copper metal can be produced by heating copper(1) oxide and hydrogen gas. another product of the reaction is water. if the molar enthalpy of reaction (δrh) is +130.5 kj/mol, calculate the enthalpy of reaction for producing 2.0 g of copper metal.

Answer

Explanation:

Step1: Determine the molar mass of copper

The molar mass of copper ($Cu$) is $M = 63.5\ g/mol$.

Step2: Calculate the number of moles of copper

The mass of copper is $m = 2.0\ g$. The number of moles $n=\frac{m}{M}=\frac{2.0\ g}{63.5\ g/mol}$.

Step3: Calculate the enthalpy change

The molar - enthalpy of the reaction is $\Delta H = + 130.5\ kJ/mol$. The enthalpy change $\Delta H_{rxn}=n\times\Delta H=\frac{2.0\ g}{63.5\ g/mol}\times130.5\ kJ/mol$.

Answer:

$4.1\ kJ$