Option C but i am not sure
Explanation:
what do you mean by "bad"
Answer:
see explanation below
Explanation:
The question is incomplete. The missing parts are a) determine the electrophylic site. b) determine the nucleophylic site.
In order to do this, we need to write the reaction and do the mechanism. The nucleophylic site will be the site where the nucleophyle attacks to form the product. In this case the site is the carbon next to the bromine. In this place the Oxigen which is the nucleophyle goes. The electrophyle is the site where one atom substract to complete it's charges. In this case, the electrophyle is usually the hydrogen, so the site will be next to the oxygen after the nucleophyle attack.
You can see it better in the attached picture.
Answer:
0.2990
Explanation:
All liquids intend to vaporize independent of the temperature if the pressure is higher enough. This pressure is called the vapor pressure. When it occurs, the liquid and the vapor phases will be in equilibrium, and so the fractions of the components of the liquids and the vapor can be calculated.
The molar fraction of the liquid (x) can be calculated by the composition, so, calling xc for cyclohexane, and ca for acetone:
xc = 1.90/(1.90 + 2.60) = 0.4222
xa = 1 - 0.4222 = 0.5778
The total pressure of the system (P) can be calculated by Dalton's Law:
P = Pc + Pa
Where Pc and Pa are the partial pressures of the components. The partial pressures can be calculated by the Raoult's Law:
Pc = xc*P°c
Pa = xa*P°a
Where P° is the vapor pressure, so:
P = xc*P°c + xa*P°a
P = 0.4222*97.6 + 0.5778*229.5
P = 137.8 torr
The molar fraction at the vapor phase (y) is the partial pressure divided by the total pressure:
yc = Pc/P
yc = (xc*P°c)/P
yc = (0.4222*97.6)/137.8
yc = 0.2990
