Answer: The mass of NaCl contained in 24.88 g of a 15% by mass solution of NaCl in water is 3.732 g.
Step-by-step explanation:
In a 15% by mass solution of NaCl, it means that 15 grams of NaCl is present in every 100 grams of the solution. To find the mass of NaCl in the given solution, we can calculate it using the following formula:
Mass of NaCl = Mass of solution * Percentage of NaCl / 100
Substituting the given values into the formula:
Mass of NaCl = 24.88 g * 15 / 100 = 3.732 g
Therefore, the mass of NaCl contained in 24.88 g of the solution is 3.732 g.