Percent Yield

[thanh24mai]

When calculating the percent yield, does the actual and theoretical yield have to be in grams or moles? Or can it be either?

[MAC 4G]

I believe you want both to be in grams, kg, etc., you'll want to find and match the theoretical in whatever unit the problem gives you for the actual yield.

[ramiro_romero]

Usually a question will ask you for the yield in grams. In any case, both theoretical and actual yields must be in the same units then multiplied by 100 for the correct percent yield.

[Arianna Perea 3H]

If the actual yield is given in grams do we change it to moles or do we change the theoretical yield to grams if its in moles?

[Serena Siddiq 3D]

If the actual yield is given in grams do we change it to moles or do we change the theoretical yield to grams if its in moles?

The formula for percent yield uses both actual and theoretical yields in grams, so I would suggest always making sure both are in grams! Unless the problem asks for the actual or theoretical yield in moles, which it probably won't, just convert it over to grams and you are good to plug it into the percent yield formula! Hope that helps!

[Ghadir Seder 1G]

They'll most likely ask for it in grams!

[Shanzey]

My TA mentioned that you could do moles/moles when calculating the percent yield, so I think it can be either; however, we usually use grams/grams.