what will be the percent yield if 650.4 g of nitrogen trihydride is actually produced?

To calculate the percent yield, we need to know the theoretical yield and the actual yield.

In this case, the actual yield is given as 650.4 g. However, we don't have the information to calculate the theoretical yield, which is the amount of nitrogen trihydride that should have been produced according to stoichiometry and reaction conditions.

Without the theoretical yield, it is not possible to calculate the percent yield.