$0.2 \text{ M}$ $Na_2SO_4$ çözeltisinin $27 \text{ }^{\circ}\text{C}$'deki ozmotik basıncı kaç $\text{atm}$'dir? ($R = 0.082 \text{ L \cdot atm / mol \cdot K}$)
A) $4.92 \text{ atm}$
B) $7.38 \text{ atm}$
C) $9.84 \text{ atm}$
D) $12.3 \text{ atm}$
E) $14.76 \text{ atm}$
