Answer: The percent yield of the given reaction is 82 %.
Explanation:
The chemical equation for the reaction of zinc and hydrochloric acid follows:
[tex]Zn+2HCl\rightarrow ZnCl_2+H_2[/tex]
To calculate the percent yield of the reaction, we use the equation:
[tex]\%\text{ yield}=\frac{\text{Experimental yield}}{\text{Theoretical yield}}\times 100[/tex]
Experimental yield of hydrogen gas = 164 g
Theoretical yield of hydrogen gas = 200 g
Putting values in above equation, we get:
[tex]\%\text{ yield of hydrogen gas}=\frac{164g}{200g}\times 100\\\\\% \text{yield of hydrogen gas}=82\%[/tex]
Hence, the percent yield of the reaction is 82 %.