Question

You are attempting to collect pure hydrogen gas by reacting hydrochloric acid with zinc. Based on the amount of reactants you used, you should have made 200 grams of hydrogen, but you only get 164 grams out of your reaction. What was your percent yield?

Answer 1

Answer: The percent yield of the given reaction is 82 %.

Step-by-step explanation:

The chemical equation for the reaction of zinc and hydrochloric acid follows:

`Zn+2HCl\rightarrow ZnCl_2+H_2`

To calculate the percent yield of the reaction, we use the equation:

`\%\text{ yield}=\frac{\text{Experimental yield}}{\text{Theoretical yield}}* 100`

Experimental yield of hydrogen gas = 164 g

Theoretical yield of hydrogen gas = 200 g

Putting values in above equation, we get:

`\%\text{ yield of hydrogen gas}=(164g)/(200g)* 100\\\\\% \text{yield of hydrogen gas}=82\%`

Hence, the percent yield of the reaction is 82 %.