In an chemicalbreaction involving fe and s, it was found that 45.2 g of fes was produced. if the percent yield of the reaction is 94.5%, what is the theoretical yield of this reaction?

47.8 g

Explanation:

Remember the equation for percent yield:

% yield = actual / theoretical

We're given two of the values in the question, so plug n' play:

0.945 = 45.2 / theoretical

theoretical = 47.8 g

Keep in mind you can use mass here without converting to moles because we're working with products only. If you were given a mass of reactants, you would need to convert to moles and using a balanced chemical equation find the corresponding moles of product produced.

i believe the answer is a.