Answer:
A single distillation cycle is enough to separate the mixture. ... Simple distillation is the method used to separate substances in mixtures with significantly different boiling points, while fractional distillation is used for mixtures containing chemicals with boiling points close to each other.
Explanation:
The mantle layer is more dense closest to the core.
Explanation:
In order to convert temperature from degree Celsius to kelvin then we need to add 273 into the given temperature.
Therefore, converting into kelvin as follows.
Temperature in Kelvin =
= 196 K
Now, convert temperature from degree Celsius to degree Fahrenheit as follows.
Temperature in degree Fahrenheit =
=
= Fahrenheit
Thus, we can conclude that equals 196 K and Fahrenheit.
Answer:
pH = 2.77
Explanation:
Data Given:
degree of dissociation Ka = 0.057
Concentration of Methanoic acid = 0.005 M
pH = ?
Solution:
First we calculate Hydrogen ion concentration
Formula will be used
[H⁺] = . . . . . . (1)
where
Ka = degree of dissociation
c = concentration
Put values in formula 1
[H⁺] = . . . . . . (1)
[H⁺] = 0.0017 M
Now Calculate the pH
As we know
pH = -log [H⁺] . . . . . .(2)
Put values in equation
pH = - log [ 0.0017 M]
pH = - [-2.77]
pH = 2.77
So,
pH of methanoic acid = 2.77
Answer:
A. Rutherford and Bohr
Explanation:
I think this is right but I am not sure it has been a while since i read about them