Calculate the molalities of the following aqueous solutions?

Question

) 1.22 M sugar (C12H22O11) solution (density of solution = 1.12 g/mL)
m
(b) 0.42 M NaOH solution (density of solution = 1.04 g/mL)
m
(c) 4.72 M NaHCO3 solution (density of solution = 1.19 g/mL)
m

Answer 1

Divide the molarity by the density each time.