1. A saturated solution of NaCI in water has a composition of approximately 36.0 g of NaCI in 100.0 g of water and a density of approximately 1.22g/ml. Note: the molar masses of water and NaCI are 18.0 g and 58.5 g, respectively; Ki=1.86 °C/m and K _b = 0.51)°C/m.

a. Calculate the molality of this solution.

b. Calculate the molarity of this solution.

c. Calculate the freezing and boiling points of this solution, in degrees Celsius, assuming that the van't Hoff factor for NaCI is 1.8.

2. Consider the following reaction 2A → B and these results:

Experiment	[A] (M)	Initial Rate (M/s)
1	0.0600	0.00828
2	0.0200	0.00576

a. Determine the rate law for this reaction.

b. Calculated the rate constant with proper units for this reaction.

c. What concentration of substance A would be needed for an initial rate of 0.100 M/s.