Answer:
The degree of dissociation is 1
thus the fraction dissociated is one
Explanation:
The depression in freezing point is a colligative property and depends upon the number of solute particles present in the solution.
The relation between depression in freezing point and molality is:

For water
Kf=1.86 °C/m
Where
i= Van't Hoff factor
For electrolytes the i depends upon on the extent of dissociation
i = αn + (1 - α)
Where
α = is degree of dissociation
Let us put the values


Putting value:

Answer:
Compound Interest is calculated on the initial Principal for a given unit of time(yearly, half-yearly, quarterly), it also includes all of the accumulated interests of the previous period of a loan or deposit.
In this type of interest, the amount after the first unit time becomes the principal for the second unit and the amount after second unit time becomes the principal for the third unit and so on.
So the difference between the final amount and the principal is called Compound interest.
If the interest is compounded yearly:-
A=P(1+R100)n
Here A = final Amount
P = Principal
R = interest rate
n = time period
Compound interest = Final amount - principal
Given:-
Principal (P) = $4000
Interest Rate (R) = 6%
Time period (n) = 5 years
Answer: 
Explanation:
You need to know the conversion factor first in order to solve this. Any gas occupies 22.4L per mol.
of nitrogen gas.