1) What mass of NaCl is dissolved in 250 g of water in a0.050m solution.
2) Calculate the freezing points of aqueous solutions of 0.10m glucose and 0.10 m barium chloride (BaCl2)3) calculate the molality of commercial available HCl from the following data formula weight 36.465, density of the solution(g/ml) 1.19, weight % 37.2 and Molarity 12.14) A solution of 2.0 g of an unknown substance in 50.0g of cyclohexane ( freezing point = 6.6 degrees celsius and Kf = 20.4degree celsius/m) freezes at 1.05 degrees celsius. what is themolar mass of the unknown substance.