A student prepared a 1.0 L, 3.5 M aqueous solution of NaCl (table salt) in a large volumetric flask. Which of the following statements are true?

i. This 1.0 L solution contains 3.5 moles of NaCl (aq).

ii. This 1.0 L solution contains 3.5 g of NaCl (aq).

iii. If 500 mL of this solution was poured out of the flask, the solution remaining in the flask would still have a concentration of 3.5 M

iv. If 500 mL of this solution was poured out of the flask, the solution remaining in the flask would still contain 3.5 moles of NaCl (aq).