Question

How many moles each of Na+ and Cl− are in 0.500 L of the saline solution?

Answer 1

It is impossible to solve this problem without knowing the concentration of the solution.1 mol of NaCl produces 1 mol of Na⁺ and 1 mol of Cl^- ions. So, in general the answer to this question will be equal to 0.500 multipled by the missing value of the molar concentration (in M, or mol/L), and it will be the same for both ions.