The Ksp of the solution is 1.97 * 10^-9.
<h3>What is the pH?</h3>
The pH is defined as the hydrogen ion concentration of the solution. Now we have the pH of the solution as 10.9.
We know that;
pOH = 14 - pH
pOH = 14 - 10.9
pOH = 3.1
[OH^-] = Antilog [-3.1]
[OH^-] =7.9 * 10^-4 M
Now
Ksp = [M^2+] [2OH^-]^2
Ksp = s * (2s)^2
Ksp = 4s^3
Now s = 7.9 * 10^-4 M
Ksp = 4(7.9 * 10^-4)^3
Ksp = 1.97 * 10^-9
Learn more about Ksp:brainly.com/question/27132799
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Answer:9.18 m/s
Explanation:
The average speed for the entire trip is found ......total distance/total time. Remember r*t=d, so divide both sides by t and get r = d/t.
So the cyclist went 800+500+1200 m = 2500 m for total distance.
10t =800 leads to t=80 sec
5t=500 leads to t=100 sec
13t = 1200 leads to t = 92.3 sec
total time is 272.3 sec
Average speed for the entire trip is 2500 / 272.3 = 9.18 m/s
Answer:
Atomic radius increased from top to bottom in group with increase of atomic number. while ionization energy decreased.
Explanation:
Definition of atomic radii:
The atomic radius is the distance between center of two similar bonded atoms.
Ionization energy:
The amount of energy required to remove the outer most electron from gaseous atom.
Trend along group:
In group by addition of electron atomic radii increase from top to bottom due to increase in atomic number. As the atomic number increased one more electron is added and because of this electron on more electronic shell is added. Thus the outer most shell becomes further away from the nucleus and hold of nucleus becomes weaker. Although nuclear charge is also increased but at the same time atomic size also increased and addition of electrons create shielding effect, thus it is easy to remove the electron and in this way ionization energy decreased from to to bottom.
Trend along period:
As we move from left to right across the periodic table the number of valance electrons in an atom increase.The atomic size tend to decrease in same period of periodic table because the electrons are added with in the same shell. When the electron are added, at the same time protons are also added in the nucleus. The positive charge is going to increase and this charge is greater in effect than the charge of electrons. This effect lead to the greater nuclear attraction. The electrons are pull towards the nucleus and valance shell get closer to the nucleus. As a result of this greater nuclear attraction atomic radius decreases.
CuH12O10S i think that’s correct i’m not sure
0,26mol ------- 13g
1mol ------- x
x = (13g*1mol) / 0,26mol = 50g
<span>It could be Ti or V</span>
