percent yield of 650.4 g nitrogen trihydride
To determine the percent yield of nitrogen trihydride, you would need to compare the actual yield of nitrogen trihydride to the theoretical yield.
The theoretical yield is the maximum amount of product that can be obtained in a reaction, and it is calculated based on the stoichiometry of the reaction.
Without specific reaction details, it is not possible to calculate the theoretical yield of nitrogen trihydride. Please provide the balanced chemical equation and any additional information about the reaction.