Chapter 12, Problem 12.139CP

There’s actually much more in seawater than just dissolved NaCl. Major ions present include 19,000 ppm Cl”, 10, 500 ppm Na⁺, 2650 ppm S0₄^2-, 1350 ppm Mg²⁺, 400 ppm Ca²⁺, 380 ppm K⁺, 140 ppm HC0₃^-, and 65 ppm Br^-.

1. What is the total molality of all ions present in seawater?
2. Assuming molality and molarity to be equal, what amount of osmotic pressure in atmospheres would seawater give rise to at 300 K?