The correct answer is 3.
A dynamic phase equilibrium is when a reversible reaction no longer changes its ratio of reactants to products. However, substances continue to move between the chemicals at an equal rate, which means the net change is 0. This is known as a steady state.
0.35 moles carbon dioxide (6.022 X 10^23/1 mole CO2) = 2.1 X 10^23 atoms of
<span>
carbon dioxide
</span>
Answer : The value of
of the generic salt is, ![1.60\times 10^{-5}](https://tex.z-dn.net/?f=1.60%5Ctimes%2010%5E%7B-5%7D)
Explanation :
As we are given that, a solubility of salt is, 8.70 g/L that means 8.70 grams of salt present in 1 L of solution.
First we have to calculate the moles of salt ![(AB_2)](https://tex.z-dn.net/?f=%28AB_2%29)
![\text{Moles of }AB_2=\frac{\text{Mass of }AB_2}{\text{Molar mass of }AB_2}](https://tex.z-dn.net/?f=%5Ctext%7BMoles%20of%20%7DAB_2%3D%5Cfrac%7B%5Ctext%7BMass%20of%20%7DAB_2%7D%7B%5Ctext%7BMolar%20mass%20of%20%7DAB_2%7D)
Molar mass of
= 345 g/mol
![\text{Moles of }AB_2=\frac{8.70g}{345g/mol}=0.0252mol](https://tex.z-dn.net/?f=%5Ctext%7BMoles%20of%20%7DAB_2%3D%5Cfrac%7B8.70g%7D%7B345g%2Fmol%7D%3D0.0252mol)
Now we have to calculate the concentration of ![A^{2+}\text{ and }B^-](https://tex.z-dn.net/?f=A%5E%7B2%2B%7D%5Ctext%7B%20and%20%7DB%5E-)
The equilibrium chemical reaction will be:
![AB_2(s)\rightleftharpoons A^{2+}(aq)+2B^-(aq)](https://tex.z-dn.net/?f=AB_2%28s%29%5Crightleftharpoons%20A%5E%7B2%2B%7D%28aq%29%2B2B%5E-%28aq%29)
Concentration of
= ![\frac{0.0252mol}{1L}=0.0252M](https://tex.z-dn.net/?f=%5Cfrac%7B0.0252mol%7D%7B1L%7D%3D0.0252M)
Concentration of
= ![\frac{0.0252mol}{1L}=0.0252M](https://tex.z-dn.net/?f=%5Cfrac%7B0.0252mol%7D%7B1L%7D%3D0.0252M)
The solubility constant expression for this reaction is:
![K_{sp}=[A^{2+}][B^-]^2](https://tex.z-dn.net/?f=K_%7Bsp%7D%3D%5BA%5E%7B2%2B%7D%5D%5BB%5E-%5D%5E2)
Now put all the given values in this expression, we get:
![K_{sp}=(0.0252M)\times (0.0252M)^2](https://tex.z-dn.net/?f=K_%7Bsp%7D%3D%280.0252M%29%5Ctimes%20%280.0252M%29%5E2)
![K_{sp}=1.60\times 10^{-5}](https://tex.z-dn.net/?f=K_%7Bsp%7D%3D1.60%5Ctimes%2010%5E%7B-5%7D)
Thus, the value of
of the generic salt is, ![1.60\times 10^{-5}](https://tex.z-dn.net/?f=1.60%5Ctimes%2010%5E%7B-5%7D)
Answer:
the answer is B: cue - white ball - blue ball.
Explanation:
The energy transfers from the stick to the white ball, then from the white ball to the blue ball. I also took this and it was correct!
Answer:
A homogeneous mixture has the same uniform appearance and composition throughout.A heterogeneous mixture consists of different substances or phases.It is a mixture where the components of the mixture are not uniform or have localized regions with different properties The three phases or states of matter are gas, liquid, and solid.
Explanation: