Question

1. calculate the osmotic concentration (osmolarity) of a 0.5 m nacl solution. hint: remember nacl will disassociate into na⁺ and cl⁻. options: 1.0 m, 1.0 osm/l, 0.5 m, 0.5 osm/l

Explanation:

Step1: Identify dissociation of NaCl

NaCl dissociates into 2 ions: $\text{Na}^+$ and $\text{Cl}^-$, so the van't Hoff factor $i=2$.

Step2: Calculate osmolarity

Osmolarity = Molarity $\times i$
$\text{Osmolarity} = 0.5\ \text{M} \times 2 = 1.0\ \text{Osm/L}$

Answer:

1.0 Osm/L