<p>I cant figure this out. Does density come into play? I can't seem to get A as the answer. I get 3.33 m instead.</p>
<p>13.9 A solution contains 4.00 g NaOH, 5.61 g KOH, and 1.03 g RBOH in 90.0 g of water. The solution has a density of 1.08 g/mL. What is the molality of OH-?
A. 2.33 m
B. 2.09 m
C. 2.52 m
D. 2.16 m
E. None of the above is within 2% of the correcet answer</p>