Final answer:
The percent yield of the reaction producing sodium chloride from Na and Cl2, with a theoretical yield of 13.0 grams and actual yield of 12.5 grams, is 96.2%.
Step-by-step explanation:
The percent yield of a chemical reaction is a measure of how efficient the reaction was in terms of producing the desired product. It is calculated as the ratio of the actual yield to the theoretical yield, multiplied by 100. In this case, the theoretical yield of the reaction between Na and Cl2 producing sodium chloride is 13.0 grams, and the actual yield is 12.5 grams.
To calculate the percent yield, we use the following formula:
Percent Yield = (Actual Yield / Theoretical Yield) x 100%
In this particular reaction:
Percent Yield = (12.5 g / 13.0 g) x 100% = 96.2%
Therefore, the percent yield of the sodium chloride produced in this reaction is 96.2%.