1. How many mL of 16 M NH3 are needed to prepare 2.00 L of a 2.00 M solution? 2. How much NaCl is present in 25.0 mL of a 12.0% (w/v) solution? 3.Consider the following four liquids: 1. water: highly polar; H-bonding 2. hexanol: slightly polar; some H-bonding 3. chloroform: slightly polar; no H-bonding 4. octane: non-polar; no H-bonding Which pair of liquids is immiscible? water and octane water and hexanol chloroform and octane hexanol and chloroform none of the above