Step1 Cocentration of NaCl =.250 moles Step2 Molarity =[ concentration in moles]/volume in litres Step3 Molarity =.250/2 =.125 Solution Step1 Cocentration of NaCl =.250 moles Step2 Molarity =[ concentration in moles]/volume in litres Step3 Molarity =.250/2 =.125.