1. The colligative effects of 1 molal sugar solution would be _________ 1 molal sodium chloride solution.

a. greater than

b. the same as

c. less than

Would it be less than since in a solution the concentration of sodium chloride would double since it splits into na+ and cl- ?

2. Ethane (C_{2}H_{6}) dissociates into methyl radicals by a first order reaction at elevated temperatures. If 110 mg of ethane is confined to a 500 ml reaction vessel and heated to 700 degree celsius what is the initial rate of ethane decomposition if k= 5.5 * 10^-4 s^-1 in the rate law (for the rate of dissociation of C_{2}H_{6})?

What i did for this problem was that i converted .11 g of ethane into .0014 moles and then i found the molarity by .0014mol/(.5L)

which was .0028 mol/L. Then i used the 1st order rate law k[C2H6] and found that the initial rate was (5.5*10^-4)*(.0028)=

1.55*10^-6 mol/L*s. Does this approach seem correct? Thanks