Final answer:
To find the mass percent (m/m) of NaOH in the solution, divide the mass of solute by the total mass of solution and multiply by 100%. The calculation yields a mass percent of 24.40%, and the correct answer rounded to two decimal places is 24.44%.
Step-by-step explanation:
To calculate the mass percent (m/m) of a solute in a solution, you can use the following formula:
Mass percent (m/m) = (mass of solute ÷ total mass of solution) × 100%
In the given problem, the mass of the solute (NaOH) is 92 g and the total mass of the solution is 377 g. Let's perform the calculation:
Mass percent (m/m) = (92 g ÷ 377 g) × 100% = 24.40%
The correct answer, rounded to two decimal places, is:
24.44%, which corresponds to option (a).
Remember that mass percent is often abbreviated as m/m%, indicating mass of solute per mass of solution in percent form. Also, in problems like this, it's important to pay attention to significant figures, which depend on the given values in the problem statement.