Question

Equal moles of H2O and NaCl are present in a solution. Hence, molality of NaCl solution is :

• A. 0.55
• B. 55.5
• C. 1.00
• D. 0.18

Answer 1

Answer: (B)

55.5

Answer 2

(2)

Let, = nNaCl = n

$m = \frac{Moleofsolute}{wt.ofsolvent(kg)} = \frac{n}{n \times 18} \times 1000$

=$\frac{1}{18}$ ×1000 = 55.55 m.