Answer:
The mass of the solution is 140 grams.
Step-by-step explanation:
The mass of the solution is given by the sum of the solute's mass and the solvent's mass:
![m_(sol) = m_(ste) + m_(svt)](https://img.qammunity.org/2022/formulas/chemistry/high-school/970t822uqzlnc77fgbxa5f9fkyoi0ibv04.png)
Where:
: is the mass of the solution
: is the mass of the solute
: is the mass of the solvent
The solute is the salt (40.0 g) and the solvent is the water (100 g), so:
![m_(sol) = m_(ste) + m_(svt) = 40 g + 100 g = 140 g](https://img.qammunity.org/2022/formulas/chemistry/high-school/gvn4y17giwvf7sueuba9gosg7okdmwvz47.png)
Therefore, the mass of the solution is 140 grams.
I hope it helps you!