1. The problem statement, all variables and given/known data Seawater is approximately .60M NaCl. What is the minimum pressure that must be applied at 25 degrees Celsius to purify seawater by reverse osmosis? Assume i=2.0 for NaCl. 2. Relevant equations Osmotic pressure = MRT R= gas constant, .0821 Latm/mol K 3. The attempt at a solution I started by trying to find the osmotic pressure: Osmotic pressure = .60M (.0821 Latm/mol K) (298 K) = 14.68 Latm I feel like this isn't correct because I didn't use the i=2.0 part. Can someone tell me what i'm doing wrong? should i first calculate the boiling point of the solution using delta t = i Kb(m) ? If so, why and how can I calculate that using m?