Final answer:
The question asks for the percent yield of NaOH, but without the reaction details or theoretical yield, it is not possible to calculate the percent yield.
Step-by-step explanation:
The question is asking to calculate the percent yield of sodium hydroxide (NaOH) based on the actual mass isolated from a reaction. To calculate percent yield, you need the actual yield and the theoretical yield. To find the theoretical yield, you'd typically start with an equation for the reaction and use stoichiometry to calculate it from the given reactants' quantities. However, since no reaction description or reactants' quantities are provided in this question, it's impossible to calculate the theoretical yield and, subsequently, the percent yield.