Answer: Option (d) is the correct answer.
Explanation:
It is given that boiling point of chlorine is 239 K. To convert temperature in degree Celsius, use the formula as follows.
Temperature in Kelvin = Temperature in degree Celsius + 273
or, Temperature in degree Celsius = Temperature in Kelvin - 273
= 239 - 273
= 
Thus, we can conclude that when chlorine boils at 239 K then boiling point of chlorine expressed in degrees Celsius is .
Answer:
Option A and option D.
Explanation:
A. Kw = [H⁺] [OH⁻] / [H₂O] FALSE
This is the expression for the water's equilbirium.
2H₂O ⇄ H₃O⁺ + OH⁻
We can also say: H₂O ⇄ H⁺ + OH⁻
In the expression for K, we do not consider water.
Option C is correct: Kw = [H⁺] [OH⁻]
B. True
Kw = Ka . Kb
So, Ka = Kw / Kb
C. We saw, that is true.
D. Ka is not Kb⁻¹ . FALSE
Ka = Kw / Kb
Ka = 10^⁻(pKa)
Answer:
Explanation:
Hello,
In this case, we use the boiling point elevation colligative property equation for both ethanol and carbon tetrachloride as shown below:
Now, since both the boiling point and the concentration of the solutions are equal, we solve a 2x2 system of lineal equations:
Subtracting the equations one obtains the molality (concentration):
Finally, solving for the boiling temperature of the solution one obtains:
Best regards.
I would say the last one because it includes more elements
