How would you prepare 400ml of a 0.24M NaCl solution?

Answer 1

We first calculate the amount, in moles, of NaCl that we will need.Amount of NaCl needed = 0.24 x 400/100 = 0.096mol.

Mass of NaCl needed = (23.0 + 35.5) x 0.096 = 5.616g

So to produce 400ml of 0.24M NaCl solution, accurately add 5.616 grams of NaCl to 400ml of deionised water.

Answer 2

To prepare 400ml of a 0.24M NaCl solution, you would need to dissolve 3.84g of NaCl in enough water to make a final volume of 400ml. Calculate the amount of NaCl needed using the formula: moles = concentration (M) x volume (L), and then convert moles to grams using the molar mass of NaCl.