Answer:
[tex]0.44\text{ M}[/tex]Explanation:
Here, we want to get the molarity of the solution
Mathematically, we have that calculated as:
[tex]\begin{gathered} molarity\text{ = }\frac{number\text{ of moles}}{volume} \\ \\ number\text{ of moles = }\frac{mass}{molar\text{ mass}} \end{gathered}[/tex]We start by getting the number of moles
We can get that by dividing the mass by the molar mass
The molar mass of NaCl is 58.44 g/mol
The number of moles is thus:
[tex]number\text{ of moles = }\frac{90}{58.44}\text{ = 1.54 mole}[/tex]To get the molarity, we have it that:
[tex]molarity\text{ = }\frac{1.54}{3.5}\text{ = 0.44 M}[/tex]