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Problem 66

Reactants $A$ and $B$ form product $C .$ Draw a r…

University of Maine
Problem 65

Percent yields are generally calculated from masses. Would the result be the same if amounts (mol) were used instead? Why?


percentages not be the same.



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Video Transcript

percent yield is a way to measure the efficiency of a chemical reaction and is calculated by dividing the actual yield by the theoretical yield and multiplying by 100. The actual yield is the experimental amount of product form. The theoretical yield is the calculated amount of product based on the amount of reactant and squeaky metric Lee equivalent relationships. Typically, our percent yield is calculated using grams of product. But it could also be calculated using moles because the ratio will still be the same because going from grams to moles uses the molar mass, which will be the same for both the amount calculated as well as the amount measured. So we could also calculate our percent yield by using moles of product formed, divided by the moles of product calculated. The ratio will be the same.

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