Vapor Pressure: Measures how a substance is likey to evaporate
Surface Tension: is the attraction between liquid molecules.
Plasma: is an organic and inorganic substance that is typically found in blood
Answer:
Explanation:
In this, we can with the <u>ionization equation</u> for the hydrazoic acid (). So:
Now, due to the Ka constant value, we have to use the whole equilibrium because this <u>is not a strong acid</u>. So, we have to write the <u>Ka expression</u>:
For each mol of produced we will have 1 mol of . So, we can use <u>"X" for the unknown</u> values and replace in the Ka equation:
Additionally, we have to keep in mind that is a reagent, this means that we will be <u>consumed</u>. We dont know how much acid would be consumed but we can express a<u> subtraction from the initial value</u>, so:
Finally, we can put the ka value and <u>solve for "X"</u>:
So, we have a concentration of 0.000285 for . With this in mind, we can calculate the <u>pH value</u>:
I hope it helps!
Answer
6.9 x 10¹²Hz
Explanation:
Given parameters:
Wavelength of the wave = 4.35 x 10⁻⁵m
Unknown:
Frequency of the wave = ?
Solution:
The speed of a wave is related to the wavelength and frequency using the expression below;
C = Fλ
C is the speed of light = 3 x 10⁸m/s
F is the frequency
λ is the wavelength
Insert the given parameters and solve;
3 x 10⁸ = F x 4.35 x 10⁻⁵
F = = 6.9 x 10¹²Hz
It would be that Electrical energy is converted to chemical energy only when there is an external power source because there are both kinds of cells that are electrochemical to which an arode is an electrode to which there is half-reaction on the oxidation and another half-reaction on the reduction but only for the electrode cathode. The main cell that converts chemical energy into electrical energy is a called the Galvanic energy.