Answer:
The mass of the solution is 140 grams.
Explanation:
The mass of the solution is given by the sum of the solute's mass and the solvent's mass:
[tex] m_{sol} = m_{ste} + m_{svt} [/tex]
Where:
[tex] m_{sol} [/tex]: is the mass of the solution
[tex]m_{ste}[/tex]: is the mass of the solute
[tex]m_{svt} [/tex]: is the mass of the solvent
The solute is the salt (40.0 g) and the solvent is the water (100 g), so:
[tex] m_{sol} = m_{ste} + m_{svt} = 40 g + 100 g = 140 g [/tex]
Therefore, the mass of the solution is 140 grams.
I hope it helps you!