3H2(g)+N2(g)→2NH3(g) 1.36 g H2 is allowed to react with 9.51 g N2, producing 1.06 g NH3 1.) What is the theoretical yield in grams for this reaction under the given conditions? 2.)What is the percent yield for this reaction under the given conditions?

Respuesta :

Answer:

[tex]m_{NH_3}=7.71gNH_3[/tex]

[tex]Y=13.8\%[/tex]

Explanation:

Hello,

In this case, given the chemical reaction and the initial amounts, we first identify the limiting reactant by verifying the reactant yielding the smallest amount of product:

[tex]n_{NH_3}^{By\ H_2}=1.36gH_2*\frac{1molH_2}{2gH_2}*\frac{2molNH_3}{3molH_2}=0.453molNH_3\\ \\n_{NH_3}^{By\ N_2}=9.51gN_2*\frac{1molNH_2}{28gN_2}*\frac{2molNH_3}{1molN_2}=0.679molNH_3[/tex]

Thus, since the hydrogen yields the least amount of ammonia, it is the limiting reactant, which means the theoretical yield of ammonia is:

[tex]m_{NH_3}=0.453molNH_3*\frac{17gNH_3}{1molNH_3}\\ \\m_{NH_3}=7.71gNH_3[/tex]

Finally, the percent yield for a 1.06-g actually yielded amount turns out:

[tex]Y=\frac{1.06gNH_3}{7.71gNH_3}*100\%\\ \\Y=13.8\%[/tex]

Best regards.

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