Answer: The number of moles of NaCl in the solution are 0.0875 moles.
Explanation:
To calculate the number of moles of NaCl, we use the equation that is used to calculate molarity, which is:
[tex]\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}[/tex]
We are given:
Molarity of NaCl solution = 0.35 mol/L
Volume of solution = 250 mL = 0.250 L (Conversion factor: 1L = 1000 mL)
Putting values in above equation, we get:
[tex]0.35mol/L=\frac{\text{Moles of NaCl}}{0.250L}\\\\\text{Moles of NaCl}=0.0875mol[/tex]
Hence, the number of moles of NaCl in the solution are 0.0875 moles.