Question

Which would have the higher osmotic pressure: a 0.10 M solution of NaCl or a 0.10 M solution of KBr?

Answer 1

Using the equation for osmotic pressure:
\[\pi=iMRT\]
but really, you don't need to, they're both the same concentration, 0.1 M, and they also have the same van't hoff dissociation factor, i, (they both dissociate into 2 ions). so they're the same