1445g of water must be added to 255.0 g NaCl to make a 15.00 by mass solution.
What is mass?
In a physical body, Mass is the quantity of matter.
Mass is calculated as volume multiplied by density.
Mass of NaCl is 255.0 g
Mass of the solution is 15.00
Lets the mass of water is x then,
[tex]\rm 0.15 = \dfrac{255.0}{x} \\\\x = \dfrac{255.0}{0.15 } = 1700\;g[/tex]
[tex]\rm (H_2O + NaCl) - (NaCl) = H_2O[/tex]
1700 - 255 g = 1445 g
The mass of the water will be, 1445 g.
Learn more about mass, here:
https://brainly.com/question/19694949
