You may have used too much of the reactants. You may have recorded the mass of the reactants or products incorrectly.
if you received 85.0 percent back from your product then your percent yield is 85 percent.
why don't reactions give us a 100 percent yield?
The yield would be 15.38%.
that means that 69.8 grams will be produced when the theoretical yield is 100 grams.
The reaction may have not been complete yet, therefore resulting in a higher percent yield than 100%
Impurities in the substance can cause a greater percent yield. I recommend redoing the lab for better results.
Percent yield is calculated by dividing the actual yield (the amount of product obtained in a chemical reaction) by the theoretical yield (the amount of product that should be obtained according to stoichiometry) and multiplying by 100 to get a percentage. This formula allows you to determine how efficiently a reaction was carried out by comparing the actual yield to the maximum possible yield.
the amount of product obtained over the amount possible multiplied by 100
Actual
The process you are describing is known as calculating the percent yield. It is a measure of how efficient a chemical reaction is by comparing the actual amount of product obtained (actual yield) with the maximum possible amount that could be obtained (theoretical yield) under ideal conditions.
if you received 85.0 percent back from your product then your percent yield is 85 percent.
Percent Yield.
To calculate percent yield, you would use the formula: (actual yield / theoretical yield) * 100%. If the actual yield is 14.4 and the theoretical yield is not provided, the percent yield cannot be calculated accurately without the theoretical yield.
If this is the actual yield, real amount produced, then you need the theoretical yield to find the percent yield. % yield = (actual yield / theoretical yield) x 100
Percent yield greater than 100% can occur due to impurities in the final product, incomplete reactions, or errors in the measurements taken during the experiment. It is a sign that not all of the reactants were converted to the desired product, leading to a higher yield than theoretically expected.
Do you need it? Are you being told to calculate it? percent yield = (actual yield) divided by (theoretical yield) x 100
Caco3 -------- CaO plus CO2 what is the theoretical yield of cao if 24 point 8 g of caco3 were heated what is the percent yield if one was able to obtain 13 point 1 g of CaO in the above proces?