Strong electrolytes completely ionize when dissolved, and no neutral molecules are formed in solution
Small fractions of weak electrolytes' molecules ionize when dissolve in water. Some neutral molecules are present in their solutions. For example, ammonia, NH4OH, carbonic acid, H2CO3, acetic acid, CH3COOH, and most organic acids and bases are weak electrolytes.
To actually prepare the solution, 250 mL of 3.00 M NaCl: 1. Transfer 43.8 g of NaCl to a 250 mL volumetric flask partly filled with distilled water. 2. Shake to dissolve. 3. Add enough water to the flask to reach the mark 4. Stopper the flask and invert several times to mix thoroughly . mL L moles grams