Question

125 gram NaoH is dissolved in 250 gram of H2O determine mass percentage of caustic soda

Answer 1

Mass percentage of solute is "the mass of the solute divided by the total mass of the solution."

Here, mass percentage of caustic soda(NaOH) = 125/(125+250) = 125/375 = 1/3

Therefore the mass percentage of caustic soda is 33.3%