Molarity is the number of moles of solute in one liter of solution whereas molality is the number of moles of solute present in 1 kilo gram of solution.
Molarity is denoted by M and molality denoted by m
[tex]m = (n) * (1000 /w_A) = 0.0433 m[/tex]
[tex]M_B = 26 g /mol[/tex]
[tex]W_A = 1 kg = 1000 g[/tex]
[tex](W_B /26) * (1000 /1000) = 0.0433[/tex]
[tex]W_B = 1.12 g[/tex]
Mass of solution
[tex]W_B + W_A = 1.12 + 1000 = 1001.12 g[/tex]
Density of solution = 1.1 g /mL
d = 1.1 = (W_B + W_A) /V
[tex]1.1 = (1001.12) /V[/tex]
V = 910.11 mL
molarity of solution is:
[tex]M = (n) * (1000 /V)[/tex]
= 0.0433 /0.910 = 0.0474 M
Thus, moalrity of solution is 0.0474 M
