Answer: The percent by mass of baking soda in the solution is approximately 46.81%.
Step-by-step explanation:
Percent by mass is calculated as the mass of solute (baking soda) divided by the mass of the solution (baking soda + water) and then multiplied by 100.
In this case:
Mass of baking soda (solute) = 110 g
Mass of water (solvent) = 125 g
Mass of solution = 110 g + 125 g = 235 g
Percent by mass = (mass of baking soda / mass of solution) x 100
Percent by mass = (110 g / 235 g) x 100 ≈ 46.81%
The percent by mass of baking soda in the solution is approximately 46.81%.