Answer is <span>8.422
L.
The solving method as the attached pdf.</span>
Answer:
Cu
Explanation:
We can use oxidation numbers to figure out what is happening with the electrons.

The oxidation number of Cu increases from 0 to +2 in Cu(NO₃)₂. The copper has gained two positive charges, so it has lost two electrons. It has been oxidized, so it is the reducing agent.
NO₃⁻ is wrong. The oxidation number of N decreases from +5 in NO₃⁻ to +4 in NO₂, so it has been reduced. It is the oxidizing agent.
Cu(NO₃)₂ and NO₂ are wrong. They are the products of the reaction. They cannot be either oxidizing or reducing agents in this reaction
Answer:
you can't go through a solid unless you broke the atoms in the wall
<u>Answer:</u> The value of
for the given chemical equation is 0.0457.
<u>Explanation:</u>
Given values:
Initial moles of
= 0.700 moles
Volume of conatiner = 3.50 L
The given chemical equation follows:

I: 0.700
C: -2x +2x x
E: 0.700-2x 2x x
Equilibrium moles of
= x = 0.180 moles
Equilibrium moles of
= 2x = 
Equilibrium moles of
= 0.700 - 2x = 
Molarity is calculated by using the equation:

So,
![[SO_3]_{eq}=\frac{0.340}{3.50}=0.0971M](https://tex.z-dn.net/?f=%5BSO_3%5D_%7Beq%7D%3D%5Cfrac%7B0.340%7D%7B3.50%7D%3D0.0971M)
![[SO_2]_{eq}=\frac{0.360}{3.50}=0.103M](https://tex.z-dn.net/?f=%5BSO_2%5D_%7Beq%7D%3D%5Cfrac%7B0.360%7D%7B3.50%7D%3D0.103M)
![[O_2]_{eq}=\frac{0.180}{3.50}=0.0514M](https://tex.z-dn.net/?f=%5BO_2%5D_%7Beq%7D%3D%5Cfrac%7B0.180%7D%7B3.50%7D%3D0.0514M)
The expression of
for above equation follows:
![K_c=\frac{[SO_2]^2[O_2]}{[SO_3]^2}](https://tex.z-dn.net/?f=K_c%3D%5Cfrac%7B%5BSO_2%5D%5E2%5BO_2%5D%7D%7B%5BSO_3%5D%5E2%7D)
Plugging values in above expression:

Hence, the value of
for the given chemical equation is 0.0457.
Complete Question
The complete question is shown on the first uploaded image
Answer:
Answer: 760 uM
Explanation:
the addition of solvent to a solution in a such away that the volume of the solution increases and the concentration decreases is a process know as dilution
The concentration and the volume of the dilute and concentrated solution are given below as follows

Concentrated solution Dilute solution
Given that M1 = 97.0uM
V1 = 47.0 mL
V2 = 6.0 mL
M2 = ?
Therefore M1V1 = M2V2
M2 = M1V1/V2
M2 = (97*47)/6
M2 = 760 uM
Answer: 760 uM