You weigh a dry flask, and place a chunk of solid into it, then weigh it again. You then fill the flask to the top with water an
1 answer:
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0.17 M is the is the molal concentration of this solution
Explanation:
Data given:
freezing point of glucose solution = -0.325 degree celsius
molal concentration of the solution =?
solution is of glucose=?
atomic mass of glucose = 180.01 grams/mole
freezing point of glucose = 146 degrees
freezing point of water = 0 degrees
Kf of glucose = 1.86 °C
ΔT = (freezing point of solvent) - (freezing point of solution)
ΔT = 0.325 degree celsius
molality =?
ΔT = Kfm
rearranging the equation:
m =
m= 0.17 M
molal concentration of the glucose solution is 0.17 M
Answer:
It is an example of elimination reaction through the E2 mechanism.
Explanation:
The reaction between 1-iodobutane and pyridine is an example of an E2 (bimolecular elimination) elimination reaction.
Pyridine acts predominantly as a base and the given alkyl halide is a primary alkyl halide. Both of these two factors facilitate the E2 mechanism.
Here, both H and Cl are eliminated in a single step to produce 1-butene as the product of the reaction.
The reaction mechanism and the structure of the product are shown below.
